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how many different allele combinations would be found in the gametes produced by a pea plant whose genotype was RrYY? A) 16 B) 8 C) 4 D) 2

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Answer: The correct answer is D) 2

Th genotype of the pea plant is RrYY, which shows that it has two genes that are corresponding to two different traits that are color ( Rr) and shape ( YY) of the seed.

During gamete formation, the alleles ( different forms of gene like R and r here) of these genes are segregated and enter in the gametes. There are two allele for the gene corresponding to color that is R and r, whereas gene for shape has only one type of allele that is Y.

Two different type of allelic combinations are found ( refer attachment) in the gametes, which are RY and rY.

View image StaceeLichtenstein

The genotype of a pea plant is RrYY, which means it has two copies of each gene that correlate to two distinct features of the seed, color (Rr) and shape (YY).

  • During gamete creation, the alleles of various versions of genes, such as R and r in this case, are segregated and enter the gametes.
  • The color gene contains two alleles, R and r, but the shape gene has only one type of allele, Y.
  • Inside the gametes, two kinds of major allelic combinations are discovered, which are "RY" and "rY".

Therefore, the answer is "Option D".

Learn more:

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