Which is one function of steriods

Biology

1 answer:

Luba_88 [7]3 years ago

3 0

Where are the functions? please be more specific so we can help you

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imagine that ou are stduying a very large population of moths that is isolate d from gene flow.A single gene controls wing color

algol [13]

About the question:

I failed to find the complete question. However, I will explain why this population is considered to be in Hardy-Weinberg equilibrium, and what the destiny of the alleles is.

Answer:

This population is in equilibrium because it accomplishes all the H-W assumptions for a population in equilibrium. Genetic nor allelic frequencies will change generation after generation. Alleles will remain equal.

Explanation:

Available data:

A single gene controls wing color
Half of the moths have white-spotted wings
half of the moths have plain brown wings
W allele is dominant and expresses white wings
w allele is recessive and expresses brown wings
Individuals mate randomly
No natural selection

We will know by theory if this population is or is not in equilibrium Hardy-Weinberg if the population is in concordance with the assumptions of the theory. So let us first analyze the Hardy-Weinberg assumptions for a population in equilibrium:

• Random matings: Any individual get crossed with any other individual

• No superposed generations: each individual can leave their gametes in the pool only once.

• No mutations: No mutations originate any new gametes.

• No migration: No incorporation of gametes from other populations.

• Infinite population size: the probabilities of randomly taking an A gamete from the pool are p, and the probability of taking a B gamete is q.

• No natural selection: Each individual has equal surviving and reproducing probabilities as any other, contributing proportionally to the gamete pool.

So, the exposed population

- is isolated, meaning that there is no gene flow from other populations. No new genes will be introduced.

- has no mutations, so no allele will change to express a new form

- individuals mate randomly

- there is no natural selection acting on this group as an evolutive force that might alter the equilibrium.

Genetic nor allelic frequencies will change generation after generation.

In a Hardy-Weinberg population, where allelic frequencies are p and q (assuming a diallelic gene), genotypic frequencies after one generation of random matings are p², 2pq and q². The allelic frequencies, as well as the genotypic frequencies, remain equal after successive generations. Alleles will remain in the population from many generations.