LIFE SCIENCE

OBJECTIVE LIFE SCIENCE

GENETICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A red-flowered plant is crossed with a white-flowered plant and produces all pink-flowered plants.When a red-flowered plant is crossed with a pink-flowered plant, what percentage of the offspring will have pink flowers?
A
25%
B
50%
C
75%
D
100%
Explanation: 

Detailed explanation-1: -The crossing of a red flowered plant and a white flowered plant produces all the offspring with pink flowers. This cross illustrates red and white exhibit incomplete dominance. This situation occurs due to the blending of both the alleles.

Detailed explanation-2: -The genotype for the pink flower is RW, and the genotype for the white flower is WW. This would lead to a 50 percent chance of the offspring having a phenotype of pink.

Detailed explanation-3: –According to the experiment, when the plant (Rr) made in F1 generation is crossed with dominant plant i.e red coloured Mirabilis plant (RR), the offspring will be pink (Rr) and red (RR).

There is 1 question to complete.