During Prophase I replicated homologous chromosomes pair up and undergo synapsis. What testable question is generated regarding synapsis and genetic variability by Figure 1?
A. Is the distance between two gene loci related to crossover rate?
B. Does crossing over occur more often in some chromosomes than in others?
C. Is crossing over inhibited by methylation? D. Is crossing over promoted by methylation?

Answers

Answer 1

Answer: A

Explanation: I saw it on quizlet


Related Questions

in what ways can overpopulation be beneficial to differential reproductive success?

Answers

Answer:

Differential reproduction is called the one that occurs as a result of the differences between the individuals that make up a society or sample, where it is those with comparative advantages who manage to reproduce, while those who do not have said advantages tend to die out. It is, in short, a practical application of Charles Darwin's theory of natural selection.

Thus, if there is an overpopulation of a certain species, a series of effects will occur (such as the scarcity of resources, the lack of living space, etc.) that will tend to gradually decrease the population to return to an ideal number of individuals. In this aspect, differential reproduction will be applied, being able to reproduce those that have comparative advantages over the rest, which will inevitably become extinct.

is Professional athletic ability inherited or acquired?

O Inherited
O Acquired​

2. is color blindness inherited or acquired
A. inherited
B. Acquired

Answers

Answer:

1. Professional athletic ability is acquired

2. A

Explanation:

1. You would need to work to get to be athletic and that is not inherited

2. There is a certified gene that causes colorblindness in humans

a gene carries the __ for a trait

Answers

genes carry the information that determines your traits.
hope this helped!
A gene carries the DNA for a trait.

!!!!PLEASE HELP ASAP!!!!
Three cells that each has a diploid number of 32 go through meiosis. How
many cells result and how many total chromosomes are in each cell?

Answers

A. Twelve cells with 16 chromosomes each

what is a hypothesis

Answers

Answer:

a suggested sollution or a guess to an information given to you

Which list below correctly identifies the phases of mitosis in order from start to finish?

A. prophase, metaphase, anaphase, and telophase
B. anaphase, telophase, metaphase, and prophase
C. prophase, anaphase, telophase, and metaphase

Answers

Answer:

A. prophase, metaphase, anaphase, and telophase

Explanation:

Answer:

A. Prophase metaphase, anaphase, telophase

What's More
Activity 1:
Directions:
Match the descriptions in Column A with the parts of the nervous
system in Column B. Write only the letter of the correct answer in your
Science journal.
B
a. sympathetic nerve
b. neurons
A
1. It serves as the functional unit of the
nervous system.
2. It collects information from the sense organ
such as the eyes and the nose.
3. It serves as the primary organ of the
central nervous system.
4. It controls or regulates body's internal brain
environment, including the body temperature,
pulse and respiration rate, and bood pressure.
5. It is one of the systems that is directly involved
c. peripheral nervous
system
d. nervous system
e. automatic nervous
system
in maintaining normal functions of cells.
f. spinal cord​

Answers

Answer:

1. It serves as the functional unit of the nervous system. b. neurons

2. It collects information from the sense organ such as the eyes and the nose. c. peripheral nervous  system

3. It serves as the primary organ of the  central nervous system. f. spinal cord​  

4. It controls or regulates the body's internal brain environment, including the body temperature,  pulse and respiration rate, and bood pressure. e. autonomic nervous  system

5. It is one of the systems that is directly involved in maintaining the normal functions of cells. d. nervous system  

Explanation:

Neuron: Neurons are the structural and functional units in the nervous system.  Neurons transmit nervous impulses. These cells are formed in general by a cellular body, dendrites that are cytoplasmic extensions that receive stimuli from other cells, and an axon that is a long formation capable of conducting the electrochemical signals. Every neuron forms connections with other neurons. These connections are known as synapsis.

Peripheral nervous  system: Sense information is received by the peripheral nervous system and processed by neurons and synapses in the central nervous system. There are three types of neurons involved in this transmission: sensory or efferent neurons, interneurons, and motor or efferent neurons.

Spinal cord: The nervous system might be divided into the central nervous system and peripheral nervous system. There are two organs involved in the central nervous system that funtion as control centers. One of them is the brain, and the other organ is the spinal cord, surrounded by the vertebral column.  

Autonomic nervous  system: The autonomic nervous system is conformed by the sympathetic nervous system and the parasympathetic nervous system. It has too many functions in the organisms, controlling pressure, heart bitting, body temperature, sexual responses, urination, digestion, general metabolism, among others. It controls and regulates the whole organism.  

The nervous system: Homeostasis refers to stability, balance, or equilibrium. The organism needs to maintain homeostasis to guarantee the correct functioning of cells, tissues, organs, and so on. The homeostatic regulation is controlled by the endocrine system and by the nervous system, which acts as the control center.

Any permanent change in a gene is called a

Answers

Mutation is/can be a permanent change also

Which of the following changes in an ecosystem is most likely to result in a
species moving toward one of the poles?
A. An increase in its predator numbers
B. Climate cooling
O C. The intrusion of an invasive species
O D. Climate warming

Answers

Answer:

Climate warming

Explanation:

Answer:

The answer is D-Climate Warming

Explanation:

Once an area gets to a point of extreme warmth where the species genuinely can't handle it anymore, they'll migrate closer to the poles.

. Which statement best describes arteries? A. They have thick walls and transport blood away from the heart. B. They have thick walls and transport blood toward the heart. C. They have thin walls and transport blood away from the heart. D. They have thin walls and transport blood toward the heart.​

Answers

Answer:answer is 1

Explanation:

because i’m like that and i know

Think about the podcast that you listened to in the Lesson 2.01 Introduction. Write a one-paragraph (using complete sentences) description of the experiment that was performed on these two women. Be sure to include the following: Why was the experiment conducted? What was done to the two women in order to conduct the experiment? What conclusions could be made from this experiment? Why do you think that experiments like this are no longer performed?

Answers

Explanation:

The experiment was conducted with the purpose of understanding what makes us "who we really are"; our environment or genetics?

The two women, Paula Bernstein and Elyse Schein identical twins were separated from each other at birth and only got to be reunited when they turned age 35.

"It's undeniable that genetics play a huge role," says Paula. This makes us concludes that genetics still play a role in determining who really are.

Such experiments are no longer performed today because there are legal restrictions put in place against such actions, including the ethical issues it created.

The process of combining the parts of a lipid together is called:

Answers

Answer: esterification

Explanation:

i looked it up in my textbook

The final paragraph of the CNN report said that "several eye specialists" had pointed out that the study should have accounted for heredity. Myopia is passed down from parents to children. Myopic parents are more likely to have myopic children, and may also be more likely to leave lights on habitually (since the parents have poor vision). In what way does the knowledge of this possible genetic link affect how we interpret the data from the study? Explain.

Answers

Answer:

Myopia is a phenotype that results from interactions between genetic factors and the environment

Explanation:

A quantitative trait is a polygenic trait that depends on the cumulative effects of many genes and the environment. Some examples of quantitative traits include weight and height. Myopia is a quantitative trait whose phenotype depends on the combined action of different genes and the environment. It has been shown that genetics plays a central role in this trait (myopia), it is for that reason that myopic parents are more likely to have myopic children. However, there also are environmental factors (e.g., diet) which increase the risk to suffer myopia.

What is the genotypic ratio of the following cross? RR X Rr ?
100% Red
2:20
3:1
O
2:2:1

Answers

Answer: the genotypic ratio is 2:2:0

Explanation:

RR x Rr —> RR Rr RR Rr

Using the Gizmo, determine how coal and petroleum (oil) are formed. Describe the steps required to form each fuel from atmospheric CO2.

Answers

Answer and Explanation:

Petroleum and coal are fossil fuels.  The degradation of the earliest plants forms them. These dead plants started to pile up and form peat. Then the pressure and heat from various geological procedures convert peat into coal. Coal is a combustible rock which contains 50% carbon. Anthracite, Lignite and bituminous are the types of coal, and the formation of coal depends upon the quantity of hydrogen, oxygen and carbon. Petroleum exists naturally in liquid form and formed by decomposed organic matter. Fossil fuels can be refined into usable substances. Gasoline, tar, lubricants and many other products are obtained from petroleum. There are two steps, which required to form fuel from atmospheric carbon dioxide. In first step carbon dioxide is converted into carbon monoxide. In the second step, carbon monoxide combines with hydrogen to form hydrocarbon fuels. The formation of fuel is a natural process when animals respire carbon dioxide release in the atmosphere.

What allows cytokinesis to occur?


Synthesis of new phospholipids



Proteins similar to those in muscles



Chromosomes unpacking



Polymerase elongating the new DNA strand

Answers

Answer:

Cytokinesis is initiated in prophase when a cytoskeleton of actin filaments and microtubules forms around the cell. This band is known as the preprophase band, and will later determine the positioning of the cell plate.

Why is Glycolysis also known as Alcoholic or lactic acid Fermentation?

Answers

Answer:

In lactic acid fermentation, pyruvate from glycolysis changes to lactic acid. This type of fermentation is carried out by the bacteria in yogurt, and by your own muscle cells. In alcoholic fermentation, pyruvate changes to alcohol and carbon dioxide. This type of fermentation is carried out by yeasts and some bacteria.

where do we find the most gases in the atmosphere.​

Answers

Answer:  The most gas in the atmosphere is nitrogen, with oxygen second. Argon, an inert gas, is the third most abundant gas in the atmosphere.

Where are most gases found in the atmosphere?

Earth's atmosphere is composed of about 78% nitrogen, 21% oxygen, and one percent other gases. These gases are found in layers (troposphere, stratosphere, mesosphere, thermosphere, and exosphere) defined by unique features such as temperature and pressure.

(Please give brainiest :) I'm trying to reach my goal)  Hope this helped :)

Explanation:

Explain whether an experiment or an observational study would be more appropriate to investigate whether meditation is effective in lowering blood pressure.

Answers

Answer:

Experiment.

Explanation:

An experiment would be more appropriate method to investigate whether meditation is effective in lowering blood pressure because experiment has a control group as well as a testable group. Due to control group and testable group, we can easily find out the effect of meditation in lowering blood pressure if we apply meditation techniques to the testable group and compared it with the control group, we get results.

What would happen to an organism's total number of chromosomes every generation if mitosis produced gametes?

Answers

Answer:

if mitosis produce gametes then after fertilization the chromosome number will double than parent and so on. in each generation chromosome sets which are 2n normally ensuring new generation should exactly similar to parent generation. but the case will change when gametes are not haploid. these will be 4n, in next generation it will be 8n, and in next it will be 16n and so on.

Explanation:

I’ll mark brainliest if right

Answers

i think it’s Tt hope this helps
Tt is the answer. I took this last year

Which is one factor that increases the speed of a sound wave?
O higher temperature
O lower temperature
O traveling in a liquid rather than a solid
O traveling in a gas rather than a liquid

Answers

It’s traveling in a gas rather than a liquid

Answer:

A

Explanation:

After a successful launch and return of a rocket, NASA and SpaceX noticed a strange gel like substance on the wing. Under the microscope the strange thing has fibers, but no cells. When introduced to water the substance tends to move around. When exposed to warm temperatures it seems to grow in mass.

Answers

nonliving the heat from the hot plate is causing the gel like substance to move it's the same thing with liquid nitrogen how it seems to bounce off the floor it's because liquid nitrogen is super cold and the heat basically excites the electrons in the liquid nitrogen making it bounce off the floor same with the gel like substance the electrons in the gel substance are getting excited by the heat and jumping up and down but the substance itself is not alive

Mutations result in changes to genotype that can result in changes in phenotype. Explain how a mutation causes a change in the genotype of an organism AND may result in a change in the phenotype of an organism.

Answers

Answer:

A mutation can alter the structure/function of a particular protein, thereby also altering the phenotype resulting from this new variant

Explanation:

A mutation can be defined as a genetic change in the genome of an organism. Some mutations are capable of modifying the expression and/or structure of the proteins, while other mutations (known as silent mutations) have no effect on the resulting proteins. When mutations occur within the gene region encoding a protein (i.e., exons), they are potentially capable of producing a faulty protein. For example, a mutation can alter the Open Reading Frame (ORF) of the resulting protein, thereby inactivating it. The mutations that alter the structure and/or function of the protein can also alter the resulting phenotype associated with the expression of this protein. For example, a mutation within a gene that encodes a key enzyme can potentially alter the binding site of the protein, so the resulting mutated enzyme cannot bind to the substrate anymore. In consequence, this mutation alters the phenotype of the individual who is not more able to carry out the metabolic reaction catalyzed by the faulty enzyme.

Do green leaves absorb the maximum amount of light? If not, what color of leaf would
absorb more light?

Answers

Answer:

Chlorophyll a is the chief pigment associated with photosynthesis. As we can see,chlorophyll a absorbs red and blue wavelengths to a higher extent. Green light isn't rejected but rate of photosynthesis is more with red and blue wavelengths of light.

Explanation:

The spectral absorbance of photosystems and chloroplasts is lowest for green light...

All plants, however, has chlorophyll a, which absorbs most strongly at ~450 nm, or a bright blue color.

In 3–5 sentences, compare and contrast the flow of matter and energy in each

trophic level for land-based ecosystems and marine ecosystems. How and why

are they similar, and how and why are they different? (4 points)

Answers

Answer:There is a fundamental difference in the way energy and matter flows through an ecosystem.Matter flows through the ecosystem in the form of the non-living nutrients essential to living organisms. When a living organism dies, nutrients are released back into the soil. These nutrients then are absorbed by plants, which are eaten by the herbivores. Matter, once again, is passed on. The herbivore is eaten by a carnivore (and matter is yet again transferred therein). Ultimately, when the carnivore dies, matter is returned back to the soil by the decomposers and the cycle repeats. So you see, matter is recycled in the ecosystem.Unlike matter, energy is not recycled through the system. A part of the energy is lost at each stage.

Explanation:

If female ants can reproduce why do they need a Queen?

Answers

Answer:

Queen ants have two main responsibilities first, Queens are the founders of all ants colonies. A queen and will leave the colony she was born into a mate with flying male ants. After mating, she will scurry off to find a new location for her nest, lose her wings and lay her first hatch of eggs.

Identify the relationship described below:

Killer whales, also known as orcas, hunt and eat numerous other organisms — more than 140 species. However, orcas themselves are not hunted by any other organism. In other words, they are at the top of the food chain.

Group of answer choices

Mutualism

Parasitism

Commensalism

Competition

Predator-Prey

Answers

hi :)

The relationship described is predator-prey.

The orca is hunting and eating other organisms, which is known as a predator-prey relationship.

In case you need help with any more of these-

Mutualism is when both animals get something out of the relationship, for example, some kinds of shrimp get the food out of fishes teeth. The fish gets clean teeth, and the shrimp gets a meal.

Parasitism is fairly self-explanatory. This is when a parasite lives and gains from a host, while the host is harmed and could get diseases from the parasite.

Commensalism is when one animal benefits and the other isnt harmed nor benefited. An example of this is the remora fish which clings to the bottom of other fish when it gets tired.

Lastly, Competition. This is when two organisms compete for something they need to survive. For example, two lions could compete for a food source, such as a zebra. Usually, the strongest and fastest organism survives, or wins.

Alrighty, I hope this helped!!

Good luck with the rest of your assignment!!

What gametes are produced by the following organisms:_______.
a. Genotype YyRr, if Y and R are on different chromosomes
b. Genotype YyRr, if dominant Y and R are on the same chromosome, no crossing over
c. Genotype YyRr, if dominant Y and recessive r are on the same chromosome, no crossing over
d. Genotype YyRr, if dominant Y and R are on the same chromosome, 50% crossing over

Answers

Answer:

The correct answer would be -

1- YR, Yr, yR and yr.

2. Yr, yR

3. YR, yr

4. YR, Yr, yR & yr

Explanation:

A mature male or female haploid germ cell that fuses with another gamete of the opposite sex during the process of fertilization to make a zygote in sexual reproduction.

The law of Independent Assortment presented by Mendel says that alleles for different traits are passed and assort independently of one another in the gametes.

1. If Y and R on different chromosomes then they will produce four gametes and assort independently - YR, Yr, yR & yr.

2) If Y and R on the same chromosomes and no crossing over occurs then they will produce only two gametes as Y and R will not come together - Yr & yR.

3).  if dominant Y and recessive r are on the same chromosome, no crossing over then only two gametes will form as Y and r will not assort together - YR & yr.

4). if dominant Y and R are on the same chromosome, 50% crossing over produces 4 types of gametes, YR, Yr, yR & yr.


Methane is a molecule that has four hydrogens covalently bonded to one carbon atom and is the major component in

Answers

Answer:

hydrocarbons

Explanation:

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