Question

A species of fly has two alleles for the length of their legs. The allele for long

legs is dominant, and is represented by p. The allele for short legs is
recessive, and is represented by q. If 33 of 100 organisms have short legs,
what is p?
p+ 2pq + oʻ= 1
APEX

Answer 1

The answer is p=.43

Step-by-step explanation:

AP3X

Answer 2

`0.43`

Step-by-step explanation:

Given -

Allele for long legs is dominant, and is represented by p

Allele for short legs is recessive, and is represented by q

Given , 33 of 100 organisms have short legs

According to hardy Weinberg's equilibrium equation -

`p^2+2pq+q^2=1`

Here
`q^2` represents the frequency of species with short legs.

Thus,

`q^2 = (33)/(100) \\= 0.33`

Hence, frequency of recessive allele "p" is equal to

`q = √(0.33)\\ 1= 0.57`

As we know

`p+q=1\\p= 1-q\\p= 1-0.57\\p = 0.43`