The statement that best describes the R group of an amino acid is: R group gives amino acid unique characteristics.
AMINO ACID:
Amino acids are monomers of a molecule called proteins. Amino acids are structurally made up of three components. The three components that make up the structure of an amino acid are: amino group (-NH2), carboxyl group (-COO), and a R side chain. The amino and carboxyl groups are the same in all amino acids, however, no two amino acids have the same R side chain. This means that the R group distinguishes one amino acid from the other. Therefore, statement that best describes the R group of an amino acid is: R group gives amino acid unique characteristics.Learn more at: https://brainly.com/question/11843803?referrer=searchResults
One unit of platelets raises the platelet count which amount
During which phase of the autopsy would swabs from orifices be taken?
A. external examination
B. internal examination
Answer: A. External examination
Explanation:
An autopsy is an examination which involves the detail analysis of the internal as well as external condition of the dead body.
In external examination body color, injuries, injection marks, tattoo marks and swabs of orifices are taken to determine the cause of death.
In internal examination the dissection of all the cavities of the body is done to determine the cause of death.
Why is the clear area surrounding an antibiotic disk called the zone of inhibition?
Answer:
No bacteria grows in surrounding area of antibiotic disk, thus it is known as zone of inhibition
Explanation:
The area surrounding an antibiotic disk is called the zone of inhibition because in this region bacteria & its colonies are unable to grow. Due to the anti microbial effect produced by bacteria, there is no visible sign of presence of bacteria in the inhibition region.
Also, the zone of inhibition also depicts susceptibility of bacteria towards the effect of antibiotics.
When you see gas bubbling up out of a swamp or Marsh what can you suspect is in the water
The genes for sex-linked traits are carried on either the X or Y chromosome. Duchenne muscular dystrophy (DMD) is a recessive, sex-linked disease that is carried on the X chromosome. A woman with DMD and a man without the disease have a child. Which statement best describes the likelihood of the disease passing to their child?
a. There is a 100 percent chance that their daughter will have the disease.
b. There is a 50 percent chance that their son will have the disease.
c. There is a 50 percent chance that their daughter will have the disease.
d. There is a 100 percent chance that their son will have the disease.
Answer:
D
Explanation:
Oxygen enters the ocean only at the surface, from __________ and ______________.
a. photosynthesis, the atmosphere
b. volcanic eruptions, meteorites
c. photosynthesis, respiration
d. respiration, photosynthesis
e. respiration, rainfall
Oxygen enters the ocean only at the surface, from photosynthesis and the atmosphere.
The question pertains to how oxygen enters the ocean. Oxygen enters the ocean mainly from two sources: photosynthesis and the direct exchange with the atmosphere. Photosynthesizing organisms, such as algae and cyanobacteria, which are also referred to as phytoplankton, play a crucial role in this process by converting carbon dioxide and water into oxygen and organic compounds. Additionally, the oxygen from the atmosphere dissolves directly into the surface of the ocean through physical mixing processes.
The correct answer to the student's question is "(a). photosynthesis, the atmosphere." Photosynthesis by marine organisms adds oxygen to the ocean waters, while the atmosphere exchanges gases with the ocean's surface, allowing more oxygen to dissolve into the water.
Marta is a pregnant woman suffering from severe iodine deficiency. as a result of the deficiency, she has a high risk of giving birth to a child with _____. ariboflavinosis
A change in the frequency of alleles from one generation to the next is the definition of:
Final answer:
The change in the frequency of alleles from one generation to the next is the definition of evolution in population genetics. It refers to a change in the proportion of a specific allele within a population, relative to all other alleles of that gene.
Explanation:
The change in the frequency of alleles from one generation to the next is the definition of evolution in terms of population genetics. It refers to a change in the proportion of a specific allele within a population, relative to all other alleles of that gene. For example, in the ABO blood type system, the frequency of the IA allele can change over time, leading to evolution in the population. This concept is important in understanding how genetic change drives phenotypic change and adaptation in populations.
The average time to death from starvation in a fruit fly is about 20 hours. selecting for increased starvation resistance in fruit flies:
a. can produce populations in which the average time to death from starvation is 160 hours.
b. has no effect because it is too complex a physiological process, dependent upon the effects of too many genes.
c. has little effect because constant mutation reduces starvation resistance, counteracting any benefits from selection.
d. has no effect because it is not a trait that influences fruit fly fitness.
e. can double this, at which point the genetic variation for this trait is exhausted.
How is the structure, function and position of the crayfish nerve cord different from the rat's spinal cord?
Which type of repair is a backup for the dna polymerase proofreading function?
Base excision repair is a backup for the DNA polymerase proofreading function.
Base excision repair (BER) in biochemistry and genetics refers to the cellular mechanism during the cell cycle that repair damaged DNA and it is mainly responsible for removing small, non-helix-distorting base lesions from the genome.
Mismatch repair is a backup for the DNA polymerase proofreading function.
Mismatch repair takes place immediately after the completion of the DNA synthesis and its job is to detect, remove and replace small insertions that were undetected during proofreading.
Further ExplanationThe enzymes that are responsible for the creation of DNA in cells are known as DNA polymerase. When DNA replication takes place, the DNA polymerase can check to know which bases are added. The DNA polymerase can discover if bases are impaired. This process is what is called Proofreading.
During DNA synthesis, the DNA polymerase can discover incorrect nucleotides and replace them accordingly before the continuation of the DNA replication.
Although many errors that occur during DNA synthesis are corrected by the polymerase, some errors can still go on undetected. However, some of these insertions can be detected and corrected through mismatch repair.
Mismatch repair is the process that involves detecting and corrections of erroneous insertion that can occur after DNA replication. DNA mismatch repair can as well detect and repair damages to the DNA after New DNA has been created. The major function of the Mismatch repair is to detect, removed and replaced bases that are mispaired.
Therefore, Mismatch repair is a backup for the DNA polymerase proofreading function.
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Which type of repair is a backup for the dna polymerase proofreading function? https://brainly.com/question/6576138The initial mechanism for repairing nucleotide errors in DNA is https://brainly.com/question/13049930KEYWORDS:
proofreading functionbackupmismatch repairdna polymerasemispaired basesA brush called a filbert is best used for ________.
The study of the stomach and intestines and their diseases is called:
which of the following phrases describes earth’s biodiversity best
Biodiversity is greatest in the tropics, with a higher number of endemic species and more biodiversity hotspots. However, our knowledge of these species is low and the potential for biodiversity loss is high due to human activity.
Explanation:Regardless of the mechanisms, it is certainly true that biodiversity is greatest in the tropics. The number of endemic species is higher in the tropics. The tropics also contain more biodiversity hotspots. At the same time, our knowledge of the species living in the tropics is lowest and because of recent, heavy human activity the potential for biodiversity loss is greatest.
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Question:Which phrase best describes Earth’s biodiversity?
a. greater according to energy needs
b. greater toward Earth’s poles
c. greater in consistently warm areas
d. greater where temperatures are most variable
What form of energy does a plant store when light is transformed during photosynthesis?
The respiratory system controls the:
One difference between carbohydrates and lipids is that A) Lipids will dissolve in water but not carbohydrates. B) Carbohydrates will dissolve in water but not lipids. C) Carbohydrates contain hydrogen, carbon, and oxygen and lipids do not. Eliminate D) Lipids contain hydrogen, carbon, and oxygen and carbohydrates do not.
The difference between carbohydrates and lipid is that carbohydrates can dissolve in water but lipids cannot.
Further Explanation:
Carbohydrate are biomolecules, contain mainly three atom hydrogen,carbon and oxygen. These are polar molecule which has polar hydroxyl group and makes a hydrogen bond with water.
Carbohydrates mainly of four type-
• Monosaccharides
• Disaccharides
• Polysaccharides
• Oligosaccharides
Functions of carbohydrates
• Major source of energy
• Store glycogen for fasting
• Water-soluble
• Necessary for proper function of CNS
• Help in the oxidation of fat
Lipids are biomolecule, they also contain three atom carbon(C) hydrogen(H) oxygen(O) linked to glycerol.These are the long sequence of carbon to carbon with hydrogen bonds.Number of hydrogen is low and carbon number is high. Electronegativity between carbon and oxygen is high.Thus, they form lipid a non-polar long chain and they are insoluble in water.
Types of Lipids
• Simple
i. Wax
ii. Oil
iii. Fats
• Complex
i. Glycolipid
ii. Phospholipid
iii. Proteolipids
Function of Lipid
• Store energy
• Precursor for many hormones
• Metabolic fuel
• Part of the cell membrane
• Help in digestion.
Thus, carbohydrates are polar molecule and soluble in water. Lipids are non-polar molecule which is insoluble in water.
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Answer Details:
Grade: High School
Subject: Biology
Chapter: Biomolecules
Keywords:
Monomer,carbohydrates,lipid,water,soluble,wax,phospholipids,simple,complex,fattyacid, Monosaccharides,Disaccharides,Polysaccharides,Oligosaccharides,carbon,hydrogen,oxygen,oil,fats,glycolipis,proteolipids.
The short-term effects of confiding painful feelings may be arousal, but in the long term, talking about painful stress-producing experiences calms us by
The best way to calm a person when he or she is talking about painful stress producing experiences is by having his or her activity to be reduced in which is under the limbic system as this will allow the person to relax and be calm.
A nurse preparing a section of skin for an injection is an example of __________. a nurse preparing a section of skin for an injection is an example of __________. sanitization sterilization degerming disinfection
What dietary components are most effective at raising muscle glycogen concentrations?
Which division classifies green moss growing on a stone building?
All living things are made of one or more cells. Here are two types of cells: an animal cell and a plant cell. The plant cell is angular compared to the animal cell. What plant cell structure gives the cell its angular shape?
The cell wall made up of cellulose is the cell structure which is responsible for giving the cell its angular shape. This is the outermost layer of plant cell which is impermeable in nature. Thus, the correct option is B.
What are Plant cells?
The cell wall in the plant cell is what gives the plant cells their specific shape. The cell wall, should not to be confused with the cell membrane. Cell wall is a rigid structure which is made up of long cellulose fibers, branching hemicellulose fibers, and pectin molecules. The fluid pressure inside the plant cell also contributes to the shape and structure of plant cell.
Animal cells have the outermost layer of cell membrane or plasma membrane whereas plant cells have the rigid outermost layer i.e., cell wall. This is the reason for angular shape of plant cell.
Therefore, the correct option is B.
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Your question is incomplete, most probably the complete question is:
All living things are made of one or more cells. Here are two types of cells: an animal cell and a plant cell. The plant cell is angular compared to the animal cell. What plant cell structure gives the cell its angular shape?
A) vacuole
B) cell wall
C) chloroplast
D) plasma membrane
The _________ is the organelle which is sometimes referred to as the powerhouse of the cell due to the fact that it produces atp most efficiently.
The following seed phenotypes showed up in a generation of plants. Which alleles are recessive? blue round = 75 white round = 28 blue wrinkled = 24 white wrinkled = 8 blue and round white and round blue and wrinkled white and wrinkled
Answer:
blue and wrinkled are recessive.
Explanation:
Based on the given seed phenotypes, the alleles that are both recessive include: D. white and wrinkled.
What is a recessive trait?A recessive trait can be defined as a masked allele in the genotype which can only expressed by a living organism when two (2) of the same masked alleles are inherited.
In Genetics, the phenotypic ratio between the offspring of two (2) heterozygous parents within the F2 generation is equal to 9:3:3:1.
Given the following seed phenotypes:
Blue round = 75 = 75/9 ≈ (9 × 8).White round = 28 = 28/3 ≈ (3 × 8).Blue wrinkled = 24 = 24/3 ≈ (3 × 8).White wrinkled = 8 = 8/1 ≈ (1 × 8).Therefore, the phenotypic ratio between the offspring is close to 9:3:3:1 within the F2 generation.
Note: 1 represents the number of phenotypes with both recessive traits.
In conclusion, we can logically deduce that white and wrinkled are the alleles that are both recessive.
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An individual with (naturally) curly hair and an individual with (naturally) straight hair mate, all of their offspring have (naturally) wavy hair. what is the relationship between the alleles for hair texture?
True or false? low doses of cns depressants can cause sedative effects and relaxation.
The diagram shows the general structure of a lipid, which consists of two main parts
Some individuals have a mutated recessive allele and a homozygous individual is resistant to HIV infection and AIDS. Some populations have a high frequency of the mutant allele. What inference can be made about the mutant allele?
a. heterozygous individuals must be genetically advance even if they are not resistant to hiv
b. the mutated allele must have developed and been acquired by many people before exposure to the virus .
c. the mutated allele must not be inherited by offspring or disease would be close to eradication
d. being a homozygous is a advantage for mutated allele , while being heterozygous is genetic advantage
Answer:
b. the mutated allele must have developed and been acquired by many people before exposure to the virus .
Explanation:
What is the term for the portion of the earth's atmosphere, hydrosphere, and geosphere where life is found?
Patients' negative expectations about the outcome of a surgical procedure can increase their postoperative experience of pain. this best illustrates the importance of
The statement provided best illustrates the importance of psychological factors, specifically the impact of patients' expectations on their postoperative experience of pain.
This highlights the role of psychological factors in influencing physical outcomes and is often referred to as the mind-body connection or psychosocial influences on health.
Research has shown that patients who have negative expectations or anticipate more pain before a surgical procedure are more likely to report higher levels of postoperative pain. This phenomenon can be attributed to various psychological processes, including the influence of beliefs, attitudes, and emotions on the perception and interpretation of pain.
The importance of psychological factors in healthcare is increasingly recognized, as they can significantly affect patient outcomes, treatment adherence, recovery, and overall well-being. Healthcare professionals now understand the significance of addressing patients' psychological needs and promoting a positive mindset, as it can contribute to better pain management, improved recovery, and enhanced overall patient satisfaction.
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