Question

what genotypes are observed when you cross a dd parent with another dd parent? a 25% dd, 50% dd, 25% dd b 75% dd and 25% dd c 50% dd and 50% dd d 100% dd

Explanation:

Step1: Determine gametes

Each parent (Dd) can produce two types of gametes: D and d.

Step2: Create Punnett square

	D	d
d	Dd	dd

Step3: Calculate genotypes

From the Punnett square, there is 1 DD, 2 Dd, and 1 dd. So the proportion is \( \frac{1}{4} = 25\% \) for DD, \( \frac{2}{4}=50\% \) for Dd, and \( \frac{1}{4} = 25\% \) for dd.

Answer:

A. 25% DD, 50% Dd, 25% dd