What are the three main ways that variations in genotype arise in a population

Answers

Answer 1
Answer: These three factors affect how variations in genotype arise in a population:
1) Sexual recombination- one-half of the parent 1 and one-half of parent 2’s genes are combined to form a brand new gene for the offspring resulting to a new type of combination that is not existing before.
2) Gene crossover- this is the trade-in of genetic material from two cells that each contains a pair or 1 maternal strand and 1 paternal strand of the parents chromosomes (Homologous).
3) Chromosome aberration- it is a mutation in the chromosome wherein there is an extra or missing part of the DNA.  

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How many carbon dioxide molecules are produced during the seller respiration of glucose molecules?
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Which factors provide the basis for the differences observed in the major land biomes on Earth?A.Average temperature and average precipitationB. Average windspeed and average oxygen levelsC. Average day length and average night lengthD. Average organic content and average mineral content in soil
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Some proponents of GM agriculture argue that GM crops are safer than others. Explain what they mean.

Under maritime law, cruise ships are not allowed to discharge their garbage at sea.Please select the best answer from the choices provided

T
F

Answers

Answer:

false

Explanation:

Answer:

false

Explanation:

coochie man

Describe the effects of beavers on their habitats

Answers

Answer:

Beavers do have a positive and a negative impact on their environment around them. when they build dams, they do create new wetland environments for other marine animals and land species.

Explanation:

wetland help slow down erosions and raise the water tables, they also help purify waters too!

Hope this helped

Which of the following is a true statement?a. Cellular respiration occurs only in plant cells.
b. Cellular respiration occurs only in animal cells.
c. Cellular respiration occurs in both plant and animal cells.
d. Cellular respiration occurs in some plant cells and some animal cells.

Answers

The answer is C, cellular respiration needs to occur in all living organisms.

Which virus has a structure that includes an outer lipid bilayer that is studded with proteins?

Answers

The answer is Influenza virus and HIV virus.

A virus is an infectious agent that can replicate only inside a host cell. When it is outside the cell, it consists of genetic material coated with protein capsid. Some viruses, such as Influenza virus and HIV virus, also have an envelope which covers capsid. The envelope is an outer lipid bilayer that is studded with proteinsThe function of the envelope is to identify and bind some receptor sites on the host membranes. After fusing with the cell membrane, it allows to capsid and genetic material to enter the cell and infect it.

Answer:

influenza

Explanation:

Using what you've learned about the nucleus, how could you identify it by looking at a cellthrough a microscope.

Answers

It may be the largest organelle in the cell, filled with dark-colored chromatin. You won't be able to see the DNA with a school microscope, but you can see the chromatin, which will look like Ramen noodles.

Two eukaryotic proteins have one domain in common but are otherwise very different. Which of the following processes is the most likely to have contributed to this similarity? A) exon shuffling
B) gene duplication
C) histone modifications
D) random point mutations

Answers

Answer:

A) exon shuffling

Explanation:

Exon shuffling refers to the process of evolution of a new gene that consists of unique combinations of preexisting exons. These novel combinations of preexisting exons are formed when the interspersed repeats of introns of two different genes undergo the process of recombination.

The process of exon reshuffling is responsible for the presence of common domains between two otherwise different proteins of eukaryotes.

Example: Tissue plasminogen activator and epidermal growth factor are very different proteins but share the EGF domain.