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What method can be used to check the genotypic composition experimentally of the F2 tall plant?

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in Biology – Class 12 by (271k points)
What method can be used to check the genotypic composition experimentally of the F2 tall plant?

(a) Test cross

(b) Self cross

(c) Check cross

(d) Exam cross

I got this question during an interview for a job.

My question is from Inheritance Principles in division Principles of Inheritance and Variation of Biology – Class 12

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Best answer
The correct choice is (a) Test cross

The best explanation: To determine the genotype of a tall plant amongst the F2 progeny, Mendel employed test crossing. Here he crossed the tall plant with a recessive dwarf plant. If the genotype of the tall plant were TT, the offspring will all be tall. However, if the genotype is Tt, there will be 50% tall and 50% dwarf plants.

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