The dihybrid test cross ratio of 1: 1: 1: 1 p | vedclass

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(A) dihybrid cross involves two pairs of contrasting characters.In a dihybrid test cross,the $F_{1}$ hybrid (heterozygous for two traits) is crossed w

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$F_{1}$ hybrid produces four different types of gametes

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(A) dihybrid cross involves two pairs of contrasting characters.In a dihybrid test cross,the $F_{1}$ hybrid (heterozygous for two traits) is crossed with a double recessive parent.The resulting phenotypic ratio of $1: 1: 1: 1$ indicates that the $F_{1}$ hybrid produces four different types of gametes in equal proportions.This occurs because the two pairs of alleles segregate and assort independently during meiosis,according to Mendel's Law of Independent Assortment.

The dihybrid test cross ratio of $1: 1: 1: 1$ proves that

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