Question

A species of shark has the length of their teeth controlled by a gene ‘t’ where long is dominant to short. a homozygous long toothed shark (tt) and a heterozygous long toothed shark (tt) have an allele frequency of t: 0.75, t: 0.25. if they have 10 offspring and 6 are homozygous long toothed sharks and 4 are heterozygous long toothed sharks, what is the new allele frequency?

Answer 1

New allele is the Heterozygous one which is different from parents.

T: 0.6 t: 0.4 is the new allele frequency.

Evaluating :

Using the formula , 2Tt

So, their frequency = 2Tt

= 2×0.75×0.25

= 0.375Htz

T: 0.6 t: 0.4

What is the homozygous dominant genotype?

An organism with two dominant alleles for a trait is claimed to have a homozygous dominant genotype. Using the attention color example, this genotype is written BB. An organism with one dominant allele and one recessive allele is claimed to have a heterozygous genotype.

What is homozygous condition?

Homozygous describes the genetic condition or the genetic state where a private has inherited the same DNA sequence for a particular gene from both their biological mother and their biological father. It's often utilized in the context of disease.

Learn more about allele frequency  :

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