Question

If in snapdragon, a homozygous dominant red-flowered plant is crossed with a homozygous recessive white flowered plant, the offspring would be _________.

• A. Half red-flowered
• B. Half white-flowered
• C. All red-flowered
• D. Pink-flowered

Answer 1

The correct option is D Pink-flowered

Homozygous dominant red flowered plant- RR
Homozygous recessive white flowered plant- rr
Genotypes: RR x rr
Gametes: R r
F${}_1$: Rr (pink-coloured flower)
This is an example of incomplete dominance.

Thus, the correct answer is option D.