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Question
A heterozygous pea plant, that is tall with yellow seeds (TtYy), is allowed to self-fertilize. Which of the following will have the maximum identical genotypic combinations?
A heterozygous pea plant, that is tall with yellow seeds (TtYy), is allowed to self-fertilize. Which of the following will have the maximum identical genotypic combinations?
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Solution
The correct option is C TtYy
Cross between individuals differing in two observed traits is called dihybrid cross.
In the question, a heterozygous pea plant with tall and yellow seeds (TtYy) is self fertilised. This is similar to the selfing of F1 generation in Mendel's dihybrid experiment, which gives rise to the F2generation with a phenotypic ratio of 9:3:3:1. Although the sixteen progeny have four phenotypes, their genetic composition is quite diverse and different. The genotypic ratio is 1:2:1:2:4:2:1:2:1.
In the progeny of sixteen, 4 progenies have an identical genetic composition (YyRr).
Cross between individuals differing in two observed traits is called dihybrid cross.
In the question, a heterozygous pea plant with tall and yellow seeds (TtYy) is self fertilised. This is similar to the selfing of F1 generation in Mendel's dihybrid experiment, which gives rise to the F2generation with a phenotypic ratio of 9:3:3:1. Although the sixteen progeny have four phenotypes, their genetic composition is quite diverse and different. The genotypic ratio is 1:2:1:2:4:2:1:2:1.
In the progeny of sixteen, 4 progenies have an identical genetic composition (YyRr). Suggest Corrections
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