Question

The EGLN1 gene helps regulate body oxygen levels. One allele H is dominant over h, and helps increase fitness at high altitude (where oxygen is low). In a study of families in Tibet, researchers found 422 HH individuals, 377 Hh, and 201 hh individuals. The study showed that infant mortality was lower in Hh individuals than hh, and lowest in HH individuals. What is the genotype frequency for heterozygotes?

Answer 1

Answer:

Genotype frequency for heterozygotes is equal to $37.7$ %

Explanation:

Given

Number of individuals with genotype HH - $422$

Number of individuals with genotype hh - $201$

Number of individuals with genotype Hh - $377$

Sum of all individuals with varied genotypes

$422 + 377 + 201\\= 1000$

Genotype frequency of any  specific genotype with in a population is equal to  total number of individuals with that genotype divided by total population.

Hh is a heterozygous genotype.

Thus, genotype frequency for heterozygotes

$\frac{377}{1000} * 100\\= 37.7$

Genotype frequency for heterozygotes is equal to $37.7$ %