PATHOLOGY MCQ
GENETICS AND DISEASE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In snapdragon plants, red flowers are dominant to white flowers. When red-flowered plants are crossed with white-flowered plants, pink flowers are produced. If a researcher wants to produce plants with only white flowers, what color should the parent plants be?
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both red
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both white
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one red and one white
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one white and one pink
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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.
Detailed explanation-2: -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-3: -It is additionally called semi-dominance or incomplete dominance. The example of this case is the red snapdragon flower. If homozygous red snapdragons (RR) are crossed with homozygous white snapdragons (WW), the F1 age will have every single pink blossom (RW).
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