A gene has a base sequence of AGA. Due to a mutation, the base sequence changes to AGG.

What amino acid is coded for by this sequence before the mutation? Hint: Use the codon table.

Answer:

A. From the capsule to the larger cup

Explanation:

Solvent movement occurs from region of higher concentration to that of its lower concentration. In the given example,  the liquid capsule has higher solvent concentration since it does not have solute. Presence of solute in larger cup makes it hypertonic solution with respect to the liquid inside cup. Hence, solvent will move from hypotonic solution (liquid in capsule)  to hypertonic solution.

The solvent, which is water, will move from the larger saltwater-filled cup to the capsule with no salt, due to osmotic pressure driving water towards the higher concentration of solutes inside the capsule.

The direction in which the solvent will flow when there is a liquid capsule with no salt in it inside a cup full of salt-containing liquid is based on osmotic principles. The solvent, in this case water, will naturally move from an area of higher water concentration to an area of lower water concentration in an attempt to equalize the solute concentration on both sides of the membrane. Since the liquid inside the capsule has no salt, it has a higher water concentration compared to the saltwater in the cup. Therefore, the correct answer is:

B. From the larger cup to the capsule

This is due to the osmotic pressure that drives water towards the area with a higher concentration of solutes, which would be the inside of the salt-free capsule. The process of water moving across a semipermeable membrane from a less concentrated solution to a more concentrated solution is known as osmosis.

the answer for PLATO is:

"Yes, because these organisms likely depend on each other for survival. For example, plants and grasses can make food for insects and other small animals, such as rats. Carnivores can eat the small animals and obtain energy from them. Humans are also living things, sk they contribute to the ecosystems of these organisms. They can provide food for rats and insects. Humans can also water the plants"

Paraphrase that as you will.

Answer:

Yes, because these organisms likely depend on each other for survival. For example, plants and grasses can make food for insects and other small animals, such as rats. Carnivores can eat the small animals and obtain energy from them. Humans are also living things, sk they contribute to the ecosystems of these organisms. They can provide food for rats and insects. Humans can also water the plants

Explanation:

The thick muscular layer of the uterus is known as the myometrium. It is the middle and thickest layer of the uterus wall and is made up mostly of smooth muscle.

The function of the myometrium is that it generally holds the structural integrity of the uterus. It also generates force for parturition with the help of smooth muscle cells, components of the myometrium.

There are three different layers of the uterus are there. The outermost layer is known as the Perimetrium. It is the protective layer of the uterus.

The second layer is known as the myometrium which expands during pregnancy and contracts to push the baby out at the time of delivery. The inner layer of the uterus is known as the endometrium.

Therefore, the myometrium is the thick muscular layer of the uterus.

To learn more about the Layers of the uterus, refer to the link:

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The thick muscular layer of the uterus is known as the myometrium. This layer, part of the three-layered structure of the uterus wall, is responsible for uterine contractions. The uterus supports the developing embryo and fetus during pregnancy.

The thick muscular layer of the uterus is the myometrium. The uterus wall is structured into three layers. The innermost layer is the endometrium, rich in blood vessels and mucus glands. The outermost layer is the perimetrium, a serous membrane composed of epithelial tissue. The myometrium, the middle layer, is a thick layer of smooth muscle responsible for uterine contractions during labor and menstrual cycles.

Contractions in the myometrium possibly also facilitate the transport of sperm through the female reproductive tract. The structure of the uterus, about the size of a woman's fist, plays a vital role in supporting the developing embryo and fetus during gestation.

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Result in the formation of ATP

While specific test answers cannot be provided, studying resources such as OpenStax's 'Concepts of Biology' and Kamala Doršner's 'Essentials of Environmental Science' can help build the necessary knowledge for a Biology semester B test.

As a tutor, I cannot provide specific answers to test questions from Connexus Biology B: Unit 5: Lesson 2: Biology semester B test or any other test, as it would be against educational policies and ethical standards. However, you can enhance your understanding of the topics by studying related materials from reputable sources. For instance, the OpenStax College resource, Concepts of Biology, can be very helpful as it covers fundamental biological concepts and is available under a Creative Commons license.

Essential topics such as human biology, chemistry of life, nutrition, cells, and DNA and protein synthesis are all crucial for a strong foundation in biology. Reviewing these chapters and using other supplied resources like Essentials of Environmental Science by Kamala Doršner or the video on Branches of Biology can increase your comprehension and prepare you for the types of questions that may appear on your test.

I also recommend focusing on developing a deeper understanding of the material by engaging with the AP Biology Curriculum Framework, posing scientific questions for cause-and-effect relationships, and practicing with test banks that correlate questions to varying levels of Bloom's Taxonomy for a comprehensive study approach.

Answer:

cladistic analysis

Explanation:

Cladistic classification is classification in which organisms are put in group based on their shared characteristics and the most recent common ancestor. So, organisms of the same group are are closely related. Cladistic analysis are methods for the estimation of relationships among organisms and it includes the use of data on the traits of those organisms. The result of cladistic analysis is a diagram-tree which is called cladogram. Cladogram represents relations among organisms.

Cladistics is the analysis focusing on the sequence of derived character emergence in organisms, using homologous traits and the principle of maximum parsimony to construct phylogenetic trees, reflecting evolutionary relationships.

The type of analysis that focuses on the order in which derived characters appeared in organisms is cladistics. Cladistics involves organizing organisms into clades, which are groups that descended from a single ancestor. This method pays particular attention to homologous traits, which indicate shared evolutionary history. Using cladistics, scientists apply the concept of maximum parsimony to determine the simplest and most probable evolutionary pathway. This pathway is one with the fewest major divergences but is well supported by the available evidence.

In practice, phylogenetic trees are constructed to visualize these relationships and the emergence of derived traits relative to ancestral ones. The relative appearance of these traits helps scientists to understand the sequence of evolutionary events. Hence, when reconstructing a phylogeny for organisms based on characteristics such as their circulatory system traits, those with the most primitive features would appear towards the base of the tree, while derived features would place an organism higher on the tree.

Answer:

D. The cells in group B are prokaryotic because they replicate their DNA in the cytoplasm.

Explanation:

The cells of group A are prokaryotic because it is prokaryotes which do not have a double membranous structure called nucleus for storing their genetic material. The genetic material of prokaryotes is spread in the cytoplasm in the form of a circular DNA which is called as nucleoid. Since they do not have a separate organelle like nucleus for storage of their genetic material, they are bound to replicate their DNA in the cytoplasm. In contrast to prokaryotes, eukaryotes have nucleus for storage of their genetic material and in eukaryotes replication is an exclusively nuclear event.

Answer:

D is correct

Explanation:

The CNS processes information and makes decisions using the brain and spinal cord, while the PNS transmits signals between the CNS and the rest of the body, controlling voluntary and involuntary actions, and creating a feedback loop for continuous communication.

The peripheral nervous system (PNS) and central nervous system (CNS) are two main parts of the nervous system that work in tandem to control the functions of the body.

The central nervous system (CNS) consists of the brain and spinal cord. It is responsible for processing information and making decisions. The brain is the center of thought, emotion, memory, and decision-making, while the spinal cord serves as a conduit for signals between the brain and the rest of the body.

The peripheral nervous system (PNS) is composed of all the nerves that branch out from the brain and spinal cord and extend to other parts of the body, including the limbs and organs. The PNS is divided into the somatic nervous system, which controls voluntary movements and actions, and the autonomic nervous system, which regulates involuntary responses such as heart rate, digestion, and respiration.

The autonomic nervous system is further divided into the sympathetic and parasympathetic systems, which generally have opposite effects on target organs, such as increasing or decreasing heart rate.

The CNS and PNS work together as follows:

1. Sensory Input: Sensory receptors in the PNS detect stimuli from inside or outside the body and send this information to the CNS via sensory neurons.

2. Integration and Processing: The CNS receives sensory information, interprets it, and determines an appropriate response. This involves complex neural networks and can include conscious thought processes in the brain.

3. Motor Output: Once a decision is made, the CNS sends out commands through motor neurons in the PNS to effector organs (muscles and glands), which take action based on the CNS's instructions.

4. Feedback Loop: The effects of these actions are then monitored by the PNS, which sends feedback to the CNS, creating a continuous loop of communication that allows the nervous system to adjust its responses as necessary.

Answer:

Penicillin G

Explanation:

I remember this vaguely, remove or whatever if wrong.

Answer:

B) sympathetic and parasympathetic

Explanation:

e autonomic nervous system also called the vegetative nervous system is part of the peripheral nervous system which inervates  smooth muscle and glands. Thus, it directly affects the function of internal organs and  regulates  functions such as the heart rate, digestion, respiratory rate,  urination etc. This nervous system control is  unconscious.

The autonomic nervous system is divided into: the sympathetic nervous system, the parasympathetic nervous system and the enteric nervous system.

Parasympathetic nervous system works when organism is at rest so it is known as system responsible for "rest and digest functions". On the other hand, sympathetic nervous system works at active and stressful situations and it is known as "fight and flight" system.

Answer:

The statement given in the question is FALSE.

Explanation:

The gene pool of all populations of living organisms contain alleles that habour beneficial, harmful and neutral mutations and any of these mutations can be expressed at anytime. A mutation is said to be beneficial if it increases the ability of the organism to survive; it is described as neutral if it does not impact any change.  A harmful mutation on the other hand is one that impact the living organism negatively.

Plummet squares help here: 4 children and dominant so 75% would probably have blonde hair. Sorry if it is wrong there are no answer choices so...

~ Destiny ^_^

If both parents were to pass on their brunette hair genes (with genotype 'bb') all their children will have brunette hair given that brunette is the recessive trait and can only be expressed when both genes are present.

In genetics the dominant trait is the one that will appear even if an individual only has one copy of the dominant gene (in this case, blonde hair). The recessive trait (brunette hair in this case) will only appear if the individual has two copies of that gene. In the scenario presented both parents have the recessive brunette gene hence the genotype is 'bb' for both. Given this information if a couple each with a 'bb' hair color genotype had four children all these children would inherit the 'bb' genotype. Therefore assuming the traits for hair color follow simple Mendelian inheritance all children would be expected to have brunette hair. It's important to highlight that environmental factors and the possibility of mutations could potentially influence these outcomes to some extent but that's beyond the scope of this question.

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Answer:

all 3

Explanation:

Answer: genetic mutation maybe?

Explanation: i know that it is a genetic mutation and that it is passed from mothers to children, not from the father. the queen held the trait in her DNA and all the male children had it but the queen never showed any signs of having hemophilia

Answer:

sex-linked and occurs more in males than females.

Explanation:

In sex-linked traits, a common pattern you see is that the trait occurs more in males than females! Hope this helps! :)

Answer:

all of the above

Explanation:

Answer:

the answer is dont look it up anymore figure it out

Explanation:

Answer(nasal cavity, trachea, bronchi and bronchioles

Explanation:

Answer:

it gives you more energy quicker

Explanation:

Fermentation makes it possible for cells to continue generating ATP through glycolysis.

hope this helps :)

Answer:

Olfactory receptor - electromagnetic receptor

Explanation:

Olfactory receptors (smell receptors, odorant receptors) are chemoreceptors, responsible for the detection of  smell. Olfactory receptors are located in the olfactory receptor cells (neurons) in the nasal cavity. Odor molecules attach for the cilia, extensions of the olfactory receptor cells. As a consequence,  activated olfactory receptors start signal transduction and thus transmit information about odor to the brain.

Answer:

1.    2.8%

2.    97.1%

Explanation:

If we name the gene for the disorder with A, than the genotypes are aa (homozugous recessive), Aa (heterozygous, carrier), AA (dominant homozygous).

According to the Hardy-Weinberg equation:

frequency of AA is p2  (P)

frequency of Aa is 2pq

frequency of aa is q2 (Q) and

p2+2pq+q2=1 (P+Q=1)

Q=0.0002  P=1-0.0002=0.9998  

q= [tex]\sqrt[/tex]0.0002=0.014

p=[tex]\sqrt[/tex]0.9998=0.999

2pq=0.028=2.8%

2.  According to the Hardy-Weinberg equation:

frequency of AA is p2  (P)

frequency of Aa is 2pq

frequency of aa is q2 (Q) and

p2+2pq+q2=1 (P+Q=1)

The frequency of the recessive homozygous genotype (Q) is 1/5000=0.0002

Q=0.0002  

q2=0.0002  2pq=0.028 p2=?

p2= 1-0.0002-0.028 =0.9718=97.1%

Final answer:

Approximately 0.1% of the Amish population are heterozygous carriers of the allele for Ellis-van Creveld syndrome, and approximately 99.2% are homozygous dominant.

The percentage of the Amish population that are heterozygous carriers of the allele for Ellis-van Creveld syndrome can be estimated using the Hardy-Weinberg equation. The formula for heterozygote frequency is 2 * p * q, where p represents the frequency of the dominant allele and q represents the frequency of the recessive allele. In this case, since the disorder is rare and the recessive allele is common in the Amish population, we can assume that [tex]q^2[/tex] quals the frequency of the disorder in the population. The frequency of the recessive allele, q, is then the square root of [tex]q^2[/tex]which is 1 in every 200 births. Thus, the frequency of the dominant allele, p, is 1 - q, which is 1 - (1/200) or 199/200. The heterozygote frequency is 2 * p * q, which is 2 * (199/200) * (1/200) or approximately 0.1%.

The percentage of the Amish population that is homozygous dominant can be estimated by squaring the frequency of the dominant allele, p. In this case, p is 199/200, so the homozygous dominant frequency is [tex](199/200)^2[/tex]ately 99.2%.

three

Ozone (O3) is a triatomic, molecule, consisting of three oxygen atoms. Ozone in the upper atmosphere protects living organisms by preventing damaging ultraviolet light from reaching the Earth's surface. O3 is the formula for ozone. It has three oxygen atoms.

Hope this helps:)

Answer:

A. Inr, B. BRE, D. DPE

Explanation:

Core promoter of RNA polymerase II is a sequence of DNA that initiates transcription (contains the transcription start sites). Core promoter is usually  60 to 120 base pairs and in its structure it contains a binding site for RNA polymerase and also structural motifs such as Inr, BRE, DPE, TATA box etc. involved in the regulation of transcription (e.g. binding of enhancers).

When glucose concentration is high, the concentration of cAMP and the complex are low.

Answer:

decrease kisspeptin synthesis

Explanation:

Kisspeptin is a protein involved in the regulation of gonadotropin-releasing hormone (GnRH): it stimulates the secretion of GnRH. GnRH than stimulate the release of gonadotropins such as follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the anterior pituitary gland. FSH stimulates the  production of estrogens by the granulosa cells of the ovarian follicles.

In negative feedback system, high levels of estrogen will bind to their receptors on neurons that release kisspeptin and inhibit its further release.

High levels of estrogen would decrease kisspeptin synthesis in a negative feedback system by signaling the body to maintain hormone balance.

If kisspeptin neurons have estrogen receptors and are part of a negative feedback system, then high levels of estrogen would be expected to decrease kisspeptin synthesis. This is because in a negative feedback system, when the levels of a hormone (in this case, estrogen) are high, it typically signals the body to reduce the production of the hormone or the initiators of its production to maintain homeostasis. Therefore, in this scenario, increased estrogen would lead to a decrease in kisspeptin production, which in turn would lead to a decrease in the release of gonadotropin-releasing hormone (GnRH), ultimately reducing the secretion of gonadotropins like Follicle-Stimulating Hormone (FSH) and Luteinizing Hormone (LH).

Answer:

False

Explanation:

When scientists speak of evolution as a theory they do not mean that it is a mere speculation.  It is a theory in the same sense as the propositions that the earth is round rather than flat or that our bodies are made of atoms are theories.  Most people would consider such fundamental theories to be sufficiently tested by empirical evidence to conclude that they are indeed facts.  As a result of the massive amount of evidence for biological evolution accumulated over the last two centuries, we can safely conclude that evolution has occurred and continues to occur.  All life forms, including humans, evolved from earlier species, and all still living species of organisms continue to evolve today.  They are not unchanging end-products.

Evolution by natural selection is one of the best substantiated theories in the history of science, supported by evidence from a wide variety of scientific disciplines, including paleontology, geology, genetics and developmental biology.

The assertion that evolution by natural selection is based purely on speculation is not accurate. In science, the 'theory of evolution' is a thoroughly validated explanation of natural events that have been extensively tested and supported over time. Although large-scale evolutionary changes, like the formation of new species, occur over periods longer than a human lifespan and can't be directly observed, we have indeed witnessed instances of evolutionary processes.

The criticism that evolution by natural selection is based on mere speculation and cannot be experimentally induced or directly observed is a misunderstanding of what a scientific theory represents. In scientific terms, a theory like the 'theory of evolution,' is a well-founded explanation of natural phenomena that has been tested and validated over time.

It's not 'just a theory' in the everyday vernacular sense of a guess or speculation. In fact, there is extensive support for this theory in multiple fields of science, including genetics, paleontology and biogeography. Further, the majority of working scientists back the theory of evolution.

When critics claim that evolution is not observable, it's essential to clarify that while we cannot directly observe large-scale changes like the formation of new species (since it happens over extended periods), we indeed can and have observed instances of evolutionary processes, such as antibiotic resistance in bacteria and changes in species in response to environmental pressures.

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Answer:

ligase activity

Explanation:

This is because ligase has the role to connect DNA fragments.

DNA gyrase is one of the enzymes involved in prokaryotic DNA replication. It introduces  negative supercoils into DNA and for this process ATP is required.  This enables the process of replication to continue.

Moon is moving in a straight line. FORCE of INERTIA resists change of straight line movement.

The answer is A. Force of Earth's gravity

Moon's motion without Gravity, Atleast I think. The reason being because it leaves the earth's gravity field because the yellow line is it's rotation.

Autotrophs are able to synthesize their own food by photosynthesis. Heterotrophs cannot synthesize their own food so they must obtain from the environment. Examples include animals, fungi, ameobazoans, etc

Answer:b

Explanation:the others don’t make sense

the answer would be B (up)

I think the answer is B UP