Question

A cross between AA and aa will produce an $F_1$ progeny _________.

• A. Genotypically aa, phenotypically A
• B. Genotypically AA, phenotypically a
• C. Genotypically Aa, phenotypically A
• D. Genotypically Aa, phenotypically a

Answer 1

The correct option is C Genotypically Aa, phenotypically A

When a cross is made between AA and aa, the F1 progeny is phenotypically A, Genotypically Aa, as per the Mendel’s Law of dominance.

So, the correct option is ‘Genotypically Aa, phenotypically A’.