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  4. The maximum number of genotypes of the pollens produced by a tall pea plant with round, yellow, seeds of the genotype TtRrYY, if the three loci are unlinked, would be

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Q. The maximum number of genotypes of the pollens produced by a tall pea plant with round, yellow, seeds of the genotype $TtRrYY,$ if the three loci are unlinked, would be

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Solution:

Pollen grains are male gametes. The number of different gametes produced by a plant $Tt Rr YY $ is $2^n$ where $n =$ number of heterozygous alleles. Thus, $2^2 =4.$