Question

The crossing of a red flowered plant and a white flowered plant, produces all the offspring with pink flowers. This cross illustrates

• A. Red is dominant
• B. White is dominant
• C. Pink is dominant
• D. Red and white exhibit incomplete dominance
• E. Red and white exhibit codominance.

Answer 1

The correct option is D Red and white exhibit incomplete dominance

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. Here, the dominant gene is not in a position to completely suppress the expression of the recessive gene. With the result, the heterozygous offspring will be phenotypically and genotypically different from either of the homozygous parent.