Hardy-Weinberg Problem Set You must show the mathematies that allowed you to det
ID: 147535 • Letter: H
Question
Hardy-Weinberg Problem Set You must show the mathematies that allowed you to determine the answer for each question below. - Each individual carries a gene for hair Important equations for problems 5 -10: ) pq-12)p1-q;3)q 1-p; 4) p+2pq+ Assume a population of red bats with 10000 individuals, length. Two alleles exist for this gene, the L.' allele is for long hair, and the l'allele is for short hair, The following numbers of genotypes are known for this population: 2000 LL, 5000 LL and 3000 ll individuals. (Do not use the p and q equations for questions 1-5, work out the answers by counting alleles and genotypes) 1) What are the genotypic frequencies of LL, LI, and Il genotypes? 2) What is the total number of alleles (for this gene) in this population? 3) The frequency of the L allele in this population is 4) The frequency of the l allele in this population issExplanation / Answer
Answer:
1).
Frequency of LL genotype = 2000/10000= 0.2
Frequency of Ll genotype = 5000/10000= 0.5
Frequency of ll genotype = 3000/10000= 0.3
2).
LL= 2000 = 4000 L alleles
Ll = 5000 = 5000 L & 5000 l alleles
ll = 3000 = 6000 l alleles
Total allels = 4000+ 10000+ 6000= 20000
3)
Frequency of the L, allele = Number of L alleles / Total number of alleles
= 4000+5000 / 20000
= 0.45
4).
Frequency of the l, allele = Number of l alleles / Total number of alleles
= 6000+5000 / 20000
=0.55
5).
Frequency of brown individuals, q^2 = bb=450/6000 = 0.075
6).
Frequency of q = b = SQRT of q^2 = 0.27
7).
As p+q=1
Frequency of p = B = 1-0.27 = 0.73
8).
Frequency of heterozygote genotype, Bb = 2pq = 2 * 0.73 * 0.27 = 0.39
9).
Frequency of homozygous dominant genotype, BB = p^2 = 0.73 * 0.73 = 0.53
10).
Number of Bb individuals = heterozygote frequency * total number of individuals
= 0.39 * 6000
=2340
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