Question

Gamete (1) contains which gene ?

• A. A
• B. a
• C. Aa
• D. aa

Answer 1

The correct option is A A

When individuals with genotypes AA (homozygous dominant) are crossed with aa (homozygous recessive) the gametes formed will be A, a. The F${}_1$ individual will have genotype (Aa). All plants will have axial flower due to the presence of dominant gene A. Now the selfing of F${}_1$ will give one homozygous dominant (AA), two heterozygous (Aa), and one homozygous recessive (aa).

Thus, the correct answer is option A.