Question

multiple choice 1 point
mom has dimples (dd) but dad has no dimples (dd). what are the chances the four kids have dimples?
100%
75%
0%
25%
50%

Explanation:

Step1: Determine the gametes

Mom (Dd) can produce gametes D and d. Dad (dd) can produce gamete d.

Step2: Create Punnett square

	D	d
d	Dd	dd

Step3: Calculate probability

Out of 4 possible genotypes (Dd, dd, Dd, dd), 2 are Dd (with dimples). Probability = $\frac{2}{4}=\frac{1}{2}=50\%$

Answer:

50%