GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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100%
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50%
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0%
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None of the above
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Detailed explanation-1: -The cross between heterozygous yellow seeded plant and green seeded plant will produce 50% yellow seeded plants and 50% green seeded plants.
Detailed explanation-2: -In pea plants, seed color is an example of complete dominance. This means the dominant allele only needs to be present in one copy to give rise to the trait. A recessive allele must be present in two copies. For seed color, the yellow allele (Y) is dominant while the green allele (y) is recessive.
Detailed explanation-3: -Since the Y (yellow) allele is dominant over the G (green) allele for pea plants, 100% of the YG offspring will have a yellow phenotype, as Mendel observed in his breeding experiments.
Detailed explanation-4: -Thus, the ratio of yellow and green seeded plants will be 1:1. Q. In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants could you expect in F1-generation.