Question

1. black fur (b) is dominant to yellow fur (b). a heterozygous dad and a homozygous dominant mom have offspring. complete the punnett square to show the combinations of allele the offspring can have.

a. what percentage of the dogs will be homozygous recessive?

Explanation:

Step1: Analyze the genotypes

The heterozygous dad has genotype \( Bb \), and the homozygous dominant mom has genotype \( BB \).

Step2: Use Punnett square combinations

The possible combinations from the Punnett square (already partially filled in the problem) are \( BB \), \( BB \), \( Bb \), \( Bb \).

Step3: Calculate homozygous recessive percentage

Homozygous recessive genotype is \( bb \). There are 0 \( bb \) combinations out of 4 total combinations. The percentage is \(\frac{0}{4}\times100\% = 0\%\).

Answer:

0%