Explain Why It Is Expected That Heterozygotes Will Be Produced

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Examlex · Accepted Answer

The Answer is Combinatorials.Each individual offspring genotype has an equal likelihood of occurring (=

\frac { 1 } { 4 }

),but since there are two ways to make heterozygotes (Aa and aA),together they occur with a

\frac { 1 } { 4 }

+

\frac { 1 } { 4 }

=

\frac { 1 } { 2 }

frequency,twice that of either homozygote,which occur at a frequency of

\frac { 1 } { 4 }

each.

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