Question

7.4. create a punnett square to predict the phenotype of offspring from parents with a known genotype—both for single genes and for two independent genes. drag the potential offspring genotypes into the correct boxes in the punnett square. offspring genotypes may be used more than once.

Explanation:

Step1: Combine top - left alleles

The top - left box is the combination of the first allele from the top - row ($B$) and the first allele from the left - column ($B$), resulting in $BB$.

Step2: Combine top - right alleles

The top - right box combines the second allele from the top - row ($B$) and the first allele from the left - column ($B$), giving $BB$.

Step3: Combine bottom - left alleles

The bottom - left box combines the first allele from the top - row ($B$) and the second allele from the left - column ($b$), resulting in $Bb$.

Step4: Combine bottom - right alleles

The bottom - right box combines the second allele from the top - row ($B$) and the second allele from the left - column ($b$), giving $Bb$.

Answer:

	$B$	$B$
$b$	$Bb$	$Bb$