Classical albinism results from a recessive allele. Which of the following is the expected ratio for the progeny when a normally pigmented male with an albino father has children with an albino woman? A) ³/₄ normal; ¹/₄ albino B) ³/₄ albino; ¹/₄ normal C) ¹/₂ normal; ¹/₂ albino D) All normal E) All albino

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The normally pigmented male is a carrier (heterozygous) since his father was albino. The albino woman is homozygous recessive. Their children have a 1:1 chance of being either carriers (normal pigmentation) or albino.

Classical Albinism Results from a Recessive Allele