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Which of these principles/laws explains why phenotypic and genotypic ratios can be different. a. Independent Assortment....

  1. Which of these principles/laws explains why phenotypic and genotypic ratios can be different.

a.

Independent Assortment.

b.

Uniformity

c.

Dominance

d.

Equal segregation
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Answer #1

According to Mendel's law of independent assortment, alleles at separate loci are inherited independently.
       This leads to the charactertistic genotypic and phenotypic ratios.
           For example, in a dihybrid cross between two "double heterozygotes" ( AaBb x AaBb )
                The genotypic ratios are 1 : 2 : 1 : 2 : 4 : 2 : 1 : 2 : 1
but the phenotypic ratios can be written as 9 "AB" : 3 "Ab" : 3 "aB" : 1 "ab".

Thus law of Inependent assortment will be the correct answer.

Thankyou.

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