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What method is used to produce a true-breeding line?

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in Biology – Class 12 by (271k points)
What method is used to produce a true-breeding line?

(a) Self-pollination

(b) Cross-pollination

(c) Artificial pollination

(d) Allogamy

I had been asked this question in an online interview.

This interesting question is from Mendel’s Laws of Inheritance-2 in division Principles of Inheritance and Variation of Biology – Class 12

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Correct answer is (a) Self-pollination

Explanation: A true-breeding line is the one that is homozygous for a given allele. This can be achieved by repeated self-pollination over many generations. This exposes the traits encoded by recessive alleles, which would otherwise be suppressed by the presence of dominant alleles.

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