In a population of lizards, a gene is found in two forms, B and b. The number of animals with the three possible genotypes for this gene is as follows: BB - 24; Bb - 42; bb - 9. What is the frequency of the B allele in this population?Multiple choice question.0.320.60.50.44
Question
In a population of lizards, a gene is found in two forms, B and b. The number of animals with the three possible genotypes for this gene is as follows: BB - 24; Bb - 42; bb - 9. What is the frequency of the B allele in this population?Multiple choice question.0.320.60.50.44
Solution
To find the frequency of the B allele in the population, we first need to find the total number of alleles in the population. Each lizard has two alleles for this gene, so the total number of alleles is 2 times the total number of lizards.
The total number of lizards is the sum of the number of each genotype, which is 24 (BB) + 42 (Bb) + 9 (bb) = 75 lizards.
So, the total number of alleles is 2 * 75 = 150 alleles.
Next, we need to find the total number of B alleles in the population.
The number of B alleles is the sum of:
- 2 times the number of BB lizards (because each BB lizard has 2 B alleles), and
- the number of Bb lizards (because each Bb lizard has 1 B allele).
So, the total number of B alleles is 2*24 (BB) + 42 (Bb) = 90 B alleles.
Finally, the frequency of the B allele in the population is the total number of B alleles divided by the total number of alleles, which is 90 / 150 = 0.60.
So, the frequency of the B allele in this population is 0.60.
Similar Questions
In a population of frogs, a gene is found in two forms: D and d. The numbers of individuals with different genotypes for that gene are 30 (DD), 18 (Dd), and 12 (dd). What is the frequency of the heterozygous genotype?Multiple choice question.0.180.300.650.43
Consider a population and a gene that has two alleles in this population, designated as D and d. If you divide the number of individuals with the genotype DD by the total number of individuals in the population, you will calculate the ______ frequency of the ______.Multiple choice question.allele; D allelegenotype; D allelegenotype; dd genotypegenotype; DD genotype
The phenotype frequency is calculated by dividing the total number of individuals with a particular phenotype by which of the following?Multiple choice question.The total number of alleles in that populationThe total number of individuals in that populationThe total number of heterozygous individuals in that populationThe total number of homozygous individuals in that population
Consider a population and a gene that has two alleles in this population, designated as P and p. If you divide the number of all the copies of the p allele in the population by the total number of copies of both alleles (P and p) in the population, you will calculate the ______ frequency of the ______.Multiple choice question.genotype; p alleleallele; P alleleallele; p allelegenotype; pp genotype
The number of copies of an allele in a population divided by the total number of all alleles for that gene in a population is the Blank______.Multiple choice question.genotype frequencymean fitness of the populationallele frequencyfrequency of heterozygosity
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.