Question

Mice collected from the Sonoran desert have two phenotypes, dark(D) and light (d). The mice shown below were collected in a trap. Calculate the frequency of individuals that display the recessive trait(dd)

Answer 1

Answer:

Frequency of individuals with recessive trait(dd)$= 71.4$ %

Explanation:

Please see the attached.

In the image it is clear that there are total $26$ mouse out of which $6$ are dark colored.

Since dark color allele is dominant, these  $6$ dark colored mouse will have genotype either  DD or Dd

The individuals with genotype "dd" will be of light color.

Number of light colored mouse $= 21 -6 = 15$

Frequency of individuals with recessive trait(dd)

$= \frac{15}{21} * 100$

$= 71.4$ %