Gregor Mendel studied the inheritance of traits in pea plants. One trait he examined was the height of the plant. Pea plants with the dominant 'T' allele grew tall, and pea plants with the recessive allele 't' were short. According to Mendel's principles of heredity, if a homozygous tall pea plant was crossed with a homozygous short pea plant, approximately how many of their offspring would have the short phenotype?

Question

Biology

Alanna Parker

20 September, 09:52

Gregor Mendel studied the inheritance of traits in pea plants. One trait he examined was the height of the plant. Pea plants with the dominant 'T' allele grew tall, and pea plants with the recessive allele 't' were short. According to Mendel's principles of heredity, if a homozygous tall pea plant was crossed with a homozygous short pea plant, approximately how many of their offspring would have the short phenotype?

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Answers (2)

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Daisy · Answer 1

None of them would. This is because the recessive trait won't present itself in a plant with a heterozygous genotype (one with a dominant and recessive allele). The plants will all be tall because there is a Tt genotype for all of them.

Adeline Rivas · Answer 2

None of their offspring will have the short phenotype