Question

Percentage of offsprings with genotype aaBbCc from a cross Aabbcc and AaBBCC would be:

• A. 50%
• B. 25%
• C. 12.5%
• D. 37.5%

Answer 1

Answer: (B)

$AaBBCC\times Aabbcc$
$aaBbCc=aa=\frac{1}{4},Bb=\frac{4}{4},Cc=\frac{4}{4}$
i.e., $\frac{1}{4}\times \frac{4}{4}\times \frac{4}{4}=\frac{16}{64}=\frac{1}{4}\times 100=25\%$