Answer: Legionnaires' disease
Explanation:
Legionnaires' disease is a kind of pneumonia that is caused by the bacteria.The bacterial infection spreads by breathing the aerosol or mist from the water. The bacteria does not spread from person to person thus the disease is non-contagious.
The bacteria of the disease lives in the aquatic environment and may contaminate the water body. The symptoms of the disease includes the chills, coughs, high fever, headaches and muscle aches. X-ray and lab test can be done to diagnose the disease.
Answer: Legionella infection.
Explanation:
Legionnaires disease doesn't spread from one person to another person. They spread by the help of mist such as air conditioning units in large buildings.
The adults who are greater than the age of 50 and have addiction of tobacco is more prone to this disease because they have weaker immunity.
The common symptoms of this disease is also same like common flu, fever, chills , diarrhea, headache et cetera.
Which of the following statements is false?Algae are used to make many commercial products, like marshmallows and paint.Algae can be used as fertilizer.Algae can be used to make a polishing substance.Algae contributes to the phosphorus cycle.
Answer:Algae contributes to the phosphorus cycle
Explanation:Algae are organisms which have distinct chlorophyll and are autotrophic in nature .Most of them live in water.Algae include the Unicellular chlamydomanas and the multicellular sea weed.some algae are colonial and some are filamentuous.Algae possess chlorophyll, carotenoids and phycobillins as pigments.
Algae are important primary producers in the water bodies and produces a significant portion of oxygen.
Some algae eg diatoms are fossilized due to their glass cell wall and are known as diatomaceous earth, which has various uses such as abrasives,tooth paste and as filters.
Red algae produces calcium carbonate which forms coral reefs.
The products of some algae are used as solid gels and source of agar for microorganism culture.
In late adults, the amount of air left in the lungs after expiration of the maximum amount of air:
a.) remains unchanged because the lungs have become accustomed to years of breathing pollution.
b.) decrease, resulting in widespread collapsing of the alveoli and impaired diffusion of gases.
c.) increases, which hampers diffusion of gases because of stagnant air that remains in the alveoli
d.) decreases, which increases diffusion in the lungs and causes an accumulation of carbon dioxide.
Answer:
C.) Increases, which hampers diffusion of gases because of the stagnant air that remains in the alveoli.
Explanation:
Lungs capacity drops by 40% between ages of 20 and 80, even without disease, but can be improved with diaphragm strengthening exercises.Changes experienced in the respiratory system include and overall decrease is vital capacity,which means less air inspired and expired as well.
In addition, older adults loose elasticity in their lungs as the age, making lungs less flexible and further imparing the ability to effectively inhale and exhale.
Hence, option C) Increases, which hampers diffusion of gases because of the stagnant air that remains in the alveoli. is the right answer.
What is the term used for the phase when the cell divides
Final answer:
The phase when the cell divides is called the mitotic phase, which is part of the cell cycle and includes the processes of mitosis and cytokinesis resulting in the formation of two daughter cells.
Explanation:
The term used for the phase when the cell divides is the mitotic phase. This phase is a multistep process that includes both mitosis and cytokinesis. Mitosis is the part of the cell cycle where the duplicated chromosomes are aligned, separated, and moved to opposite poles of the cell, enabling nuclear division. Subsequently, cytokinesis completes the cell division process by physically separating the cytoplasmic components into two distinct daughter cells, each with an identical set of chromosomes.
The cell cycle consists of two general phases: interphase and the mitotic phase. Interphase is the period during which the cell grows, repairs itself, and replicates its DNA, preparing for mitosis. Interphase accounts for the majority of the cell's life cycle.
What are the small spaces/holes in compact bone tissue in which osteocytes live?
Answer:
In mature bone, osteocytes and their processes stay inside spaces called lacunae (Latin for a pit) and canaliculi, respectively.
Starting around the onset of puberty, the strength per kilogram body mass in boys ________________ and strength per kilogram body mass in girls _______________.
Explanation:
Puberty is the period during which developing young men or young ladies experience the procedure of sexual development. Adolescence includes a progression of physical stages or steps that lead to the accomplishment of fertility and the advancement of the secondary sex characteristics, the physical highlights related with grown-up guys and females, (for example, the development of pubic hair). While adolescence includes a progression of natural or physical changes, the procedure can likewise affect the psychosocial and enthusiastic improvement of the youthful.In the combined processes of glycolysis and cellular respiration is produces
Answer:
Glucose is consumed, and carbon dioxide is produced.
Explanation:
The carbon in glucose is oxidized to carbon dioxide during cellular respiration.
Which group represents the greatest number of new HIV cases in sub-Saharan Africa?
Answer is YOUNG WOMEN
Among the populations of Sub-Saharan Africa, women and girls represents the group which has the greatest number of new HIV cases than others, this is because of discrimination.
What is HIV?
HIV stands for Human Immunodeficiency Virus, it is a virus which attacks the immune system. The immune system is responsible for fighting against infections and diseases in a person's body. Over time, HIV weakens a person's immune system which makes it very hard for fighting this disease. HIV is responsible for causing AIDS (Acquired Immune Deficiency Syndrome).
Among the population, women and girls carry the greatest HIV burden in the sub-Saharan Africa. Gender inequality and discrimination is responsible for robbing women and girls of their fundamental human rights, including the right to education, health and economic opportunities.
Learn more about HIV here:
https://brainly.com/question/10667653
#SPJ2
Relationship between bronchioles alveoli and blood vessels
Answer alveoli and blood vessels The respiratory bronchioles have single alveoli off their walls. ... The respiratory bronchioles lead into alveolar ducts, (which are surrounded by smooth muscle, elastin and collagen), which lead into the alveolar sacs. These have several alveoli, surrounded by blood vessels - from the pulmonary system.
Explanation:
comment how it helps
The complex mixture of polymers coating the spore that protects the spore from dessication and UV radiation is:
Answer:
Sporopollenin
Explanation:
Sporopollenin is a biological polymer that is highly cross linked and made up of oxygen, hydrogen and carbon. It is referred to a chemically inert biopolymer because of its toughness and stability in rocks that have been in existence for over 500 million years. In other words, sporopollenin is chemically stable.
It is an important component of the outer layer or coating of pollen grains and plant spores. This protects spores from UV radiation and dessication.
Mammals like caribou that live in the arctic often have different lipids in the cells of their legs compared to the cells of their internal organs. Their legs get colder than their internal organs, which stay warmer. Indicate true or false which of the following adaptations you would expect to find in the lipids found in the cells of the legs of a caribou?
A. The lipids would be more saturated.
B. The fatty acyl tails of the phospholipids would be shorter.
C. The membranes would contain more cholesterol
Answer:
Mitochondria is the powerhouse of a cell
Explanation:
Oxytocin causes contractions during pregnancy, it also is the reason why mothers feel "motherly" towards their children after childbirth as there are high levels on oxytocin in the mother's blood.
The cells of caribou legs are not likely to have more saturated lipids, as it could impede their function in chillier temperatures. However, they may have shorter fatty acyl tails for more flexibility, and more cholesterol to fluidize the membrane.
Explanation:In polar environments such as the arctic, animals such as the caribou have adapted to the cold temperatures. One of these adaptations pertains to their cellular lipids.
A. It would be false to expect the lipids to be more saturated. Saturated lipids are packed tightly and are more rigid, which can solidify at chillier temperatures and impede cell function.
B. True, the fatty acyl tails of the phospholipids would more likely be shorter. Shorter fatty acyl tails have fewer interactions with each other, which allows for more flexibility in cold temperatures.
C. True, you would expect the membranes to contain more cholesterol. Cholesterol functions to fluidize the membrane and prevent it from becoming too stiff in low temperatures.
Learn more about Animal Adaptation here:https://brainly.com/question/35890074
#SPJ2
The modern synthesis refers to a. the combination of Mendelian and blending inheritance. b. the combination of modern genetics and Darwinism. c. the combination of modern anthropology with animal behavior. d. the combination of anthropology and biology
Answer:
B. the combination of modern genetics and Darwinism.
Explanation:
The modern synthesis refers to the concept which combined the theory of inheritance by Mendel and theory of evolution by Charles Darwin. The theory also used the concept of Theory of germplasm.
The modern synthesis concept came in the early 20th century when the studies were going on Mendel's theory and the evolutionary aspects. The concept led to the formation of new concepts like the macroevolution, microevolution and the evolution affected by mutation of genes.
Thus, Option-B is correct.
Answer:
The correct answer is b. the combination of modern genetics and Darwinism.
Explanation:
Modern synthesis is the experimental and theoretical work that was made by combining the work of two scientist Charles darwin and George Mendel. This term was coined in a book called Evolution: The Modern Synthesis.
New definition of evolution was proposed by it which was focused on the genetic basis of evolution for example allele frequency changes in the population. Gene flow, mutation pressure, natural selection, and random genetic drift were taken as the cause of evolution. So the correct answer is b.
Zinc, an essential trace element for most organisms, is present in the active site of the enzyme carboxypeptidase. The zinc most likely functions as a(n) a. competitive inhibitor of the enzyme. b. noncompetitive inhibitor of the enzyme. c. coenzyme derived from a vitamin. d. cofactor that is an activator of the enzyme.
Answer: Option D) cofactor that is an activator of the enzyme.
Explanation:
A cofactor is a non-organic component (usually a metal) of an enzyme or protein, that enhances its function. Good examples of Cofactors include iron in hemoglobin, zinc in carboxypeptidase.
Zinc at the active site of the enzyme, carboxypeptidase helps it in cleaving off aromatic amino acids.
What theoretical perspective views society as having a system of interdependent inherently connected parts?
Answer:
Functionalism
Explanation:
Functionalism is the theoretical perspective in sociology, posits that for stability and social order to be established in a society, all social institutions that make up the society, must work interdependently to contribute to the functionality of the society. Social institutions in a society include, the government, family, economy, religion, media,education.
For example, for most societies that seem relatively stable, the family pay taxes to the government, the government as an institution rely on these taxes to provide education for the children of the family in that society. All parts of this society are interdependently inherently connected.
The theoretical perspective that views society as an interconnected system of interdependent parts is known as Functionalism or the Structural-Functional theory. Originating from the writings of Herbert Spencer, this perspective likens society to a human body, with every part serving a purpose and contributing to the overall function and stability of society.
Explanation:The theoretical perspective that views society as a system of interdependent, inherently connected parts is called Functionalism or the Structural-Functional theory. This perspective emerged from the writings of Herbert Spencer, an English philosopher and biologist, who likened society to the human body - just as the various organs of the body function collaboratively to keep it running, so too do the different parts of society, such as government, education, family, religion, and economy, work together to keep the society operating smoothly.
Central to this outlook is the understanding of society as something greater than just the sum of its constituent parts. A core tenet of Functionalism is that each part of society, no matter how seemingly insignificant, serves a purpose and contributes towards societal stability and continuity. For instance, a functionalist might investigate why global inequality exists, positing that it serves certain social purposes, or explore how social change in one area of a society (like the shift towards cocoa farming in Ghana) can irrevocably impact other areas (like gender relations).
Learn more about Functionalism here:https://brainly.com/question/30721594
#SPJ12
Which type of scientific statement is defined as a possible explanation or answer to a scientific question that is based on prior knowledge or research and is testable?
Answer:
Hypothesis
Explanation:
HYPOTHESIS is the explanation of things or specific questions, or answers that is of known knowledge or research that is testable
It can also be a preposition or an assumption that tries to explain some set of evidence or known facts in an established way.
Answer:
hypothesis
Explanation:
In scientific research works, hypothesis is usually a statement about the relationship between two or more variables in the study. A hypothesis is not only an educated prediction that can be tested during research, it must be specific, and a testable prediction that would likely explain what the researcher would expect to happen in certain occasions during the course of the research study.
The first variable is known as the independent variable while the outcome is known as dependent variable.
Name the lymphatic capillary found in an intestinal villus
Answer:
Lacteal is a lymphatic capillary that is found in an intestinal villus.
Explanation:
Lacteal is a type of lympathic capillary and the main function of the structure is to absorb fats that are in the intestinal villi.
The triglycerides which are hydrolyzed by lipase enzyme passes from the lumen of intestine into the enterocytes and re esterified and forms triglycerides.
Lacteal is a part of lymphatic capillary which absorbs and transport those materials that are directly enter through blood stream.
A lacteal is the lymphatic capillary that is found in an intestinal villus. It is vital for the absorption and transport of dietary fats and lipid-soluble vitamins from the intestine to the bloodstream.
Explanation:The lymphatic capillary that is found in an intestinal villus is known as a lacteal. Lacteals play a critical role in the digestive system, most notably in the absorption and transport of dietary lipids (fats) and lipid-soluble vitamins. Within an intestinal villus, which is one of many small, hairlike projections on the lining of the small intestine, the lacteal, and a capillary bed composed of one arteriole and one venule, are present.
The breakdown products of carbohydrates and proteins, such as sugars and amino acids, can enter the bloodstream directly. However, lipid breakdown products are absorbed by the lacteals and are then transported to the bloodstream via the lymphatic system, demonstrating the uniqueness and importance of lacteals in nutrient absorption and transport.
Learn more about lacteal here:https://brainly.com/question/31608720
#SPJ12
What is the function of photosystem ii?
Answer/Explanation:
Photosystem II is the first complex involved in the light-dependent reactions in photosynthesis.It is named photosystem II because it was the first photosystem to be discovered. Photosystem II is a huge complex of proteins (sometimes called a supercomplex) found in the thylakoid membrane of chloroplasts. Photosystem II captures energy from photons of light (from the sun) to oxidise two molecules of water to form molecular oxygen. This releases electrons and hydrogen ions.When light is absorbed by one of the many pigments (chlorophyll), energy is passed from pigment to pigment until it reaches the reaction center. There, energy is transferred to a special pair of core chlorophyll pigment molecules, called P680, raising an electron to a high energy state. The high energy electron is passed to an acceptor molecule and replaced with an electron from water. This splitting of water forms oxygenElectrons travel down an electron transport chain, driving ATP production and arriving at photosystem I, which is where more energy and ATP are produced to fuel the rest of the photosynthesis reactionsPhotosystem II captures light energy and converts it into chemical energy in the form of ATP and NADPH.
Explanation:The function of Photosystem II is to capture light energy and convert it into chemical energy in the form of ATP and NADPH, which are used in the process of photosynthesis. It is the first step in the light-dependent reactions of photosynthesis, taking place in the thylakoid membrane of chloroplasts.
The photosystem II complex consists of several protein and pigment molecules, including chlorophyll, that work together to absorb light and transfer the energy to the reaction center.
Learn more about Photosystem II function here:https://brainly.com/question/31859621
#SPJ3
Which of the following describes the embryonic period? Group of answer choices The period during which the zygote moves down to the uterus and begins to implant in the lining The period during which the umbilical cord develops The period during which the major organs and structures of the organism first develop The period during which tremendous growth occurs and the organs continue to develop and become functional
Answer:
The period during which the major organs and structures of the organism first develop.
Explanation:
Germinal stage:
Germinal stage term is used for first two weeks of gestation after conception.
Embryonic period:
Embryonic period is considered from third week to the eighth week after conception.
Fetal period:
From ninth week until birth stage is known as fetal period.
Now, the embryonic period of gestation starts after germinal stage and during this phase the major organs and structures are formed within the growing mammal.
Answer:
Option- The period during which the umbilical cord develops.The period during which the major organs and structures of the organism first develop.Explanation:
As, the development of an offspring is comprised of the different process and developments that occurs for having a more developed form of body system for the living beings that is yet to be delivered however, we can term the embryonic stage as the time for the offspring when the organs are initialized to be developed in the further stages of the fetus development. While, the umbilical cord is developed during the stage, which is required for having a very easy passage between the placenta and the offspring's mother body.You are analyzing the transmembrane proteins in cells from a developing mouse embryo and find that there are many integrins in the membrane and also in the cytoplasm. How would you explain their presence in the cytoplasm, given what you know about the roles of integrins
Explanation:
integrins are recycled through the cytoplasm after serving to transport developing cells in the embryo Integrins are the major and best-described trans-film receptors that intercede dynamic communications between the extracellular framework and the actin cytoskeleton during cell motility. Integrins are αβ heterodimers with a huge extracellular area that ties the extracellular framework (ECM) and connections to the actin cytoskeleton through a short cytoplasmic tail Restricting explicitness is dictated by the extracellular area of integrins that perceive different network ligands including fibronectin (e.g., α5β1, αvβ3, α4β1), collagen (e.g., α1β1, α2β1), and laminin (e.g., α2β1, α3β1, α6β1). Cell surface receptors including the Ig superfamily individuals ICAM-1 (αLβ2, αMβ2) or VCAM-1 (α4β1) are likewise perceived by integrinsAll in all, integrins tie to explicit themes inside the lattice protein; for instance, nine diverse integrins can tie to fibronectin and acknowledgment is generally through the focal cell- binding domain (Arg-Gly-Asp [RGD] theme)According to the _____ theory, when a physiological need, such as hunger, creates an aroused tension state, it drives the organism to reduce the need.
Answer:
the drive-reduction theory
Explanation:
The drive-reduction theory is one of the theories of motivation.
This theory contains the idea that a physiological need creates a drive, which in turn motivates an organism to satisy their need.
The theory targets homeostasis or biological balance.
When there is a need such as lack of water, the need would cause a drive to be developed (thirst).
The drive would activate a response (search for water to drink).
The response is then terminated when the need has been satisfied.
According to the drive theory of motivation, physiological needs lead to psychological drive states that motivate behaviors to restore homeostasis, with such behaviors potentially becoming habitual.
Explanation:According to the drive theory of motivation, when an individual experiences a physiological need such as hunger, it creates a tension state that acts as a drive which in turn motivates the organism to engage in behaviors to reduce the need. This process is aimed at restoring the body's homeostasis. For example, when you are hungry, your blood sugar levels drop, leading to the physiological need to eat. This need then creates a hunger drive that motivates you to seek food, thus eliminating the hunger and bringing your blood sugar levels back to normal. The drive theory also emphasizes that once a behavior has successfully reduced a drive, that behavior becomes a habit which the organism is more likely to perform in the future when faced with the same drive.
The _______________ attempts to identify the "best" location for a single warehouse, store, or plant, given multiple demand points that differ in location and importance.
Answer:
weighted center of gravity method
Explanation:
The Center of Gravity Method is an approach that seeks to compute geographic coordinates for a potential single new facility that will minimize costs
The Center of Gravity method in supply chain management identifies the best location for a warehouse, store, or plant, given multiple demand points that differ in location and importance. It is an approach to minimizing transportation costs by considering demand and distances from demand points, effectively identifying an optimal 'center of gravity'.
Explanation:The process the question refers to is known as the Center of Gravity method in supply chain management. This method tries to find the optimal location for a facility such as a warehouse, store, or plant. It takes into consideration the locations of multiple demand points and their respective importance or weightage. In simpler terms, it is a geographical strategy used to minimize transportation costs, taking into account demand intensity and distances from demand points.
Steps involved in the Center of Gravity Method:Assign a coordinate system to the map of the region where the demand points are located.Identify the weight (importance) of each demand point based on its relative contribution to total demand.Compute the weighted average of the x and y coordinates to determine the 'center of gravity'.The 'center of gravity' is considered the optimal location for the single warehouse or plant.By implementing the Center of Gravity method, businesses can make efficient utilization of their resources, enhance customer satisfaction levels and improve their overall operational efficiency.
Learn more about Center of Gravity Method here:https://brainly.com/question/29372057
#SPJ12
Shontae was diagnosed with PTSD following her return from a tour in Afghanistan. Due to her repeated nightmares and flashbacks and bouts of depression, her psychiatrist would likely prescribe:
The psychiatrist would likely prescribe SSRIs or SNRIs, forms of antidepressants, which can help reduce symptoms of PTSD such as depression, nightmares, and flashbacks.
Explanation:Treatment for Post-Traumatic Stress Disorder (PTSD), such as Shontae is experiencing, often includes psychotherapy as well as medication. Psychiatrists most commonly prescribe selective serotonin reuptake inhibitors (
SSRIs) like fluoxetine (Prozac) or sertraline (Zoloft) and serotonin-norepinephrine reuptake inhibitors (SNRIs) like venlafaxine (Effexor). SSRIs and SNRIs are both types of antidepressants that can help reduce symptoms of PTSD including depression, flashbacks, and nightmares. Each individual’s response to medication varies and the most effective treatment plan is often a combination of medication and psychotherapy.
Learn more about PTSD Treatment here:https://brainly.com/question/31714388
#SPJ3
A water treatment plant needs to maintain the ph of the water in the reservoir at a certain level. To monitor this
Explanation:
pH is a proportion of the measure of Hydrogen particles (H+) even in unadulterated water particles will in general structure because of irregular procedures (creating some H+ and OH-particles). The measure of H+ that is made in unadulterated water is about equivalent to a pH of 7. That is the reason 7 is neutral.A repository can likewise be shaped from a characteristic lake whose outlet has been dammed to control the water level.The dam controls the measure of water that streams out of the repository. Expanded fluctuation and power of precipitation because of environmental change is relied upon to create both progressively extreme dry spells and flooding, with possibly genuine ramifications for water supply and pollution from combined sewer overflows.Which statement BEST explains how RNA polymerase knows where to start and stop making an RNA copy of DNA?
A. The enzyme binds to a sequence of nucleotides called introns that are cut out before they become functional.
B. The enzyme proofreads each DNA strand to help ensure each molecule is copied exactly in the order of the original strand.
C. The enzyme splices exons together before transcription begins to form the final mRNA molecule.
D. The enzyme only binds to regions of DNA known as promoters, which have specific base sequences.
"The enzyme only binds to regions of DNA known as promoters, which have specific base sequences" statement BEST explains how RNA polymerase knows where to start and stop making an RNA copy of DNA.
Option: D
Explanation:
Transcription is the mechanism which happens when polymerase of RNA (principal enzyme for transcription) attaches by aid proteins or personally or to a promoter segment near the gene beginning.
For generating a new molecule of RNA which is complementary, RNA polymerase utilizes one of the DNA strands or the parent strand as a template.
For an instance, trying to block mushroom toxicity transcription triggers liver failure and death, as no new RNAs and therefore no fresh proteins can be produced.
Final answer:
RNA polymerase starts transcribing at a region called the promoter and stops at a sequence known as the terminator. It recognizes these specific DNA sequences to transcribe the necessary genetic information into RNA, including coding exons and non-coding introns, which are spliced out to form the final mRNA.
Explanation:
The knowledge of how RNA polymerase begins and concludes the process of transcribing DNA into RNA is essential for understanding genetic expression. The correct answer to the question provided by the student is D: The enzyme only binds to regions of DNA known as promoters, which have specific base sequences.
The process initiates at the transcription start site within the promoter, a specific DNA sequence that RNA polymerase and associated proteins recognize and bind to, signaling the start of RNA synthesis. As transcription continues, the enzyme moves along the DNA, creating an RNA copy that includes exons and introns. However, before the resulting pre-mRNA is functional, non-coding introns are removed, and only the coding exons are spliced together to form the final mRNA molecule, which is then translated into a protein.
Finally, RNA polymerase reaches a terminator sequence, signaling the end of the gene and prompting the enzyme to release the newly formed RNA molecule and detach from the DNA.
In cell i10, create a formula that uses the if function to determine if a packaged clothing set is overweight by checking if the shipping weight (cell i9) is greater than 40. if this condition is true, the cell should display yes, and if it is false, the cell should display no. (hint: use "yes" for the value if true, and "no" for the value if false.)
Answer:
=IF(i9 ≥ 40, "YES" , "NO" )
Explanation:
Here, IF is the condition
we know that,
IF ( logical_test , [value_if_true] , [value_if_false] )
Here we are using greater than formula :
=IF(i9 ≥ 40, "YES" , "NO" )
It means that,
If the package is more than or equal to 40 then it will show "yes", or otherwise "no"
Here we are using yes instead of true and no instead of false
________ sweat glands are widely distributed across the body surface, ________ glands are located wherever hair follicles exist, and ________ sweat glands are found only in a few areas.
Answer:
merocrine, sebaceous, and apocrineExplanation:
Merocrine: merocrine sweat glands are widely distributed across the body surface,
Sebaceous glands are located where hair follicles have existed,
apocrine sweat glands are found only in a few areas like axilla. Apocrine -are restricted to specific areas like the axilla, nipple of the breast, pubic region and around the anus area etc.
The χ² value means nothing on its own--it is used to find the probability that, assuming the hypothesis is true, the observed data set could have resulted from random fluctuations. A low probability suggests the observed data is not consistent with the hypothesis, and thus the hypothesis should be rejected.
What is the hypothesis that you are testing?
a. The two genes are unlinked and are assorting independently, leading to a 1:1:1:1 ratio of phenotypes in the offspring.
b. The two genes are unlinked and are assorting independently, leading to a 1:1:0:0 ratio of phenotypes in the offspring.
c. The two genes are linked and are assorting together, leading to a 1:1:1:1 ratio of phenotypes in the offspring.
d. The two genes are linked and are assorting together, leading to a ratio of phenotypes in the offspring that deviates significantly from 1:1:1:1.
Explanation:
The two genes are linked and are assorting together, leading to a ratio of phenotypes in the offspring that deviates significantly from 1:1:1:1.
Chi-squared test is a standard statistical study that is used to study the distribution of certain gene properties within a given population.
Chi-squared analysis help us to see and prove the degree of deviation of an observed phenomena from a theoretical assumption.
Describe how the structure of a virus aids in its ability to infect cells.
Virulence factors of virus aids in its ability to infect cells.
Explanation:
Virulence factors help pathogenic microbes to infect host cells by virulence mechanisms – invade host, cause and spread disease, evade the defense or immune mechanism of the host. These factors makes the virus to grow, replicate, and modify the host cells due to its toxicity.
Viruses binds to the receptor protein of the host cell.
Different types of virulent factors are: invasion factors, adhesive or adherent factors, capsules, endo and exotoxins, etc.
The virulence factors decides the severity and rate of spread of an infection
Answer: Capsid proteins interlock with a receptor site on the host cell.
The capsid protein and host cell receptor interlock like a puzzle piece.
Viruses vary in shape to attack the various types of receptors on cells.
The shapes of viruses include polyhedral, helical, enveloped, and complex.
Once the virus attaches to the host cell, it invades the cell and hijacks the DNA of the cell
Explanation:
This is any functional structure within the confines of a cell; literally a. Small organ; it usually has a membrane-based structure
Answer:
The correct answer is cell organelles.
Explanation:
A unique membrane-bound composition, which is found inside the eukaryotic cell's cytoplasm, that is, in plants and animal cells is termed as cell organelle. Some of the examples of cell organelles found within the cells of eukaryotes are endoplasmic reticulum, Golgi complex, mitochondria, chloroplast, etc.
All these organelles play an essential function for the proper functioning of the cell, like chloroplasts found in plants play an essential role in the process of photosynthesis, and mitochondria both in plants and animals are regarded as the powerhouse of the cell.
Answer: Organelles
Explanation:
The organelles are the small functional structure found inside the cell. The cells contains many organelles like mitochondria, chloroplast, lysosomes, nucleus and many more.
The organelles are the main functional unit of the cell which performs various types of functions.
The mitochondria of the cell is the power house of the cell, Golgi body helps in the synthesis and sorting of the proteins.
It is the organelles in the cell that performs various functions and makes it possible for the cell to live independently.
Two birds who are identical twins (i.e., have exactly the same genotype), are raised in different zoos. One of them has a red crest as an adult and the other has a yellow crest. What is the most likely conclusion you can draw regarding the heritability of crest color?
Answer: The crest color was determined by the environment
Explanation:
Identical twin birds having the same genotype shows that the genetic material is same in the cells of both. However, the difference in crest color is based on each bird adaptation to its environment
Thus, environment, just as genotype imparts the traits of an organism.
During a nuclear reaction, an isotope of a certain atom gives off a particle consisting of two protons and two neutrons, and the atom becomes a different element. Which type of radioactive decay has occurred?
Answer:
Type of radioactive decay which has occurred is an alpha decay.
Explanation:
Type of radioactive decays:
Alpha decay is defined as the decay process in which alpha particle is released. In this process, a heavier nuclei decays into a lighter nuclei. The alpha particle released carries a charge of +2 units and a mass of 4 units.Beta decay is defined as the process in which beta particle is emitted. In this process, a neutron gets converted to a proton and an electron. The released beta particle is also known as electron.Gamma decay In this process, an unstable nuclei releases excess energy by a spontaneous electromagnetic process and gamma -radiations are emitted. These radiations does not carry any charge and are electrically neutral.