Question

A homozygous tall plant (T) bearing red-colored (R) flowers is crossed with a homozygous dwarf (t) plant bearing white (r) flowers.

Mention the possible combinations of the gametes that can be obtained from the $F_1$ hybrid plant.

Answer 1

The genotype of the homozygous dominant plant is TTRR, thus the gametes produced by this plant will contain TR genes. The genotype of the homozygous recessive plant is ttrr, thus the gametes produced by this plant will contain tr genes. Thus, the genotype of F${}_1$ generation will be TtRr.

The possible combinations of gametes that can be obtained from F${}_1$ hybrid plants are,

TR: Tall and Red

Tr: Tall and White
tR: Dwarf and Red
tr: Dwarf and White