Question

1. create two punnett squares to illustrate the crosses for your possible male genotypes (from question 7) with a deaf female dog (dd)

possible cross 1
% of possible genotypes:
dd: ____
dd: ____
dd: ____
% of possible phenotypes:
deaf pups: ____
hearing pups: ____

Explanation:

To solve this, we assume a common cross (e.g., female \( dd \) with male \( Dd \), a typical heterozygous hearing male).

Step 1: Create Punnett Square

	\( d \)	\( d \)
\( d \)	\( dd \)	\( dd \)

Step 2: Calculate Genotype Percentages

• \( DD \): 0% (no \( DD \) in square)
• \( Dd \): \( \frac{2}{4} = 50\% \) (two \( Dd \) cells)
• \( dd \): \( \frac{2}{4} = 50\% \) (two \( dd \) cells)

Step 3: Determine Phenotypes

• Deaf (\( dd \)): 50% (since \( dd \) is deaf)
• Hearing (\( Dd \) or \( DD \)): 50% (only \( Dd \) here, which is hearing)

Answer:

• % of possible Genotypes: \( DD \): \( 0\% \), \( Dd \): \( 50\% \), \( dd \): \( 50\% \)
• % of possible Phenotypes: Deaf pups: \( 50\% \), Hearing pups: \( 50\% \)

(Note: If the male genotype was different, adjust accordingly. This uses a common \( Dd \) male for illustration.)