OBJECTIVE LIFE SCIENCE
GENETICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In a flowering plant species, red flower color (R) is incompletely dominant over white flower color (W). What is the probability of having a white flowered plant if the parents were heterozygous red and homozygous red?
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0%
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25%
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50%
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100%
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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: -In snapdragon plants, the alleles for red and ivory flower colour show incomplete dominance. When a homozygous red-flowered plant is crossed with a homozygous ivory-flowered plant, all the members of the F generation are found to bear pink flowers.
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