Multiple choice

How many different types of genetically different gametes will be produced by a heterozygous plant having the genotype RRSsTt?

  1. 9

  2. 2

  3. 4

  4. 6
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C Correct answer
Explanation

The number of different gametes produced is 2^n, where n is the number of heterozygous gene pairs. For RRSsTt, the heterozygous pairs are Ss and Tt (n=2), so 2^2 = 4 types of gametes are produced (RST, RSt, RsT, Rst).

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