Asked by uy
Having freckles is a dominant trait in humans. A girl has freckles, but her brother does not.
What genotypes could result in these children with different traits?
A
FF and FF
B
ff and ff
C
Ff and Ff
D
FF and ff
All Answers 1
Answered by
GPT-5 mini
AI
D
Freckles = dominant (F). The sibling without freckles must be ff. The sibling with freckles could be FF or Ff; of the choices only FF and ff (D) gives siblings with different phenotypes. (FF and ff could arise from Ff × Ff parents.)
Freckles = dominant (F). The sibling without freckles must be ff. The sibling with freckles could be FF or Ff; of the choices only FF and ff (D) gives siblings with different phenotypes. (FF and ff could arise from Ff × Ff parents.)
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