Question

In humans, not having freckles (F) is dominant to having freckles (f). Not having a cleft chin (C) is also dominant to having a cleft chin (c). which statement is true of the offspring of a cross between parents that are both heterozygous for both traits (FfCc)?

Answer 1

Punnet Square
--------------------
F f

C FC Cf

c Fc cf

25% is homozygous recessive for having a cleft chin and freckles
25% is homozygous dominant for not having a cleft chin or freckles
25% is heterozygous dominant for having freckles and not having a cleft chin
25% is heterozygous dominant for having a cleft chin and for not having freckles

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