Knowee
Questions
Features
Study Tools

A gene is found in two forms in a population of plants. The two alleles are denoted as B and b. You determine that the frequency of the B allele in this population is 0.2. If this population is in a Hardy-Weinberg equilibrium, calculate the probability of a heterozygote in the next generation.Multiple choice question.0.160.320.640.04

Question

A gene is found in two forms in a population of plants. The two alleles are denoted as B and b. You determine that the frequency of the B allele in this population is 0.2. If this population is in a Hardy-Weinberg equilibrium, calculate the probability of a heterozygote in the next generation.Multiple choice question.0.160.320.640.04

🧐 Not the exact question you are looking for?Go ask a question

Solution

The Hardy-Weinberg equilibrium principle states that the frequency of alleles in a population will remain constant from generation to generation in the absence of other evolutionary influences. These influences include genetic drift, mutation, selection, gene flow, meiotic drive, genetic hitchhiking, population bottleneck, founder effect and inbreeding.

The formula for Hardy-Weinberg equilibrium is p^2 + 2pq + q^2 = 1, where:

  • p is the frequency of one allele (in this case, B)
  • q is the frequency of the other allele (in this case, b)
  • p^2 is the frequency of homozygous dominant individuals (BB)
  • 2pq is the frequency of heterozygous individuals (Bb)
  • q^2 is the frequency of homozygous recessive individuals (bb)

Given that the frequency of the B allele (p) is 0.2, we can calculate the frequency of the b allele (q) as 1 - p = 1 - 0.2 = 0.8.

The probability of a heterozygote (Bb) in the next generation is given by 2pq. Substituting the values of p and q, we get:

2pq = 2 * 0.2 * 0.8 = 0.32

So, the probability of a heterozygote in the next generation is 0.32. Therefore, the correct answer is 0.32.

This problem has been solved

Similar Questions

If the frequency of heterozygotes in a population of mice is 0.48 for a particular gene, what would be the frequency of heterozygotes in future generations if the population is in Hardy-Weinberg equilibrium?Multiple choice question.0.160.360.240.48

For a gene with two alleles, B and b, whose frequencies are p and q, respectively, the probability that an individual receives a B allele from its mother and a B allele from its father is which of the following?Multiple choice question.2pp22pqp

Consider a gene in a population of fruit bats. There are two alleles for this gene, A and a, that occur in a population with the frequencies 0.8 and 0.2, respectively. If the population is in Hardy-Weinberg equilibrium, what genotype frequencies will be observed?Multiple choice question.0.64 AA, 0.32 Aa, and 0.04 aa0.80 AA, 0.16 Aa, and 0.04 aa0.80 AA and 0.20 aa0.25 AA, 0.50 Aa, and 0.25 aa

Which of the following describes a situation, in which the predominant genotype in a population in Hardy-Weinberg equilibrium is the heterozygote? Assume that the gene of interest has only two alleles: G and g.Multiple choice question.The allele frequencies of both G and g are intermediate in value.The allele frequency of g is low.The allele frequencies of G and g are very low.Incorrect. The allele frequencies of G and g are very high.

Use the Hardy-Weinberg equations: p + q = 1 and p2 + 2pq + q2 = 1. If the dominant allele frequency is 0.8, what percentage of the population will be heterozygous?Multiple Choice32%16%64%4%20%

1/3

Upgrade your grade with Knowee

Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.