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14-03-2024
Biology

Answered

In wheat, the dominant alleles of either or both of two linked genes are needed for normal plant height. Plants that are homozygous recessive for both genes are dwarf. (In other words, only a b/a b is dwarf. Any other combination has normal height.) A true-breeding plant with normal height of genotype a B/a B is crossed to one that is A b/A b. All of the F1 plants have normal height. One of these F1 plants is test-crossed to a dwarf plant, with the following results.

Normal height 88 plants

Dwarf 12 plants

Answer :

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