A Rare Recessive Trait in a Pedigree is Indicated by Which

Question

A rare recessive trait in a pedigree is indicated by which pattern of inheritance?
A) vertical
B) horizontal
C) diagonal
D) both vertical and horizontal
E) father to daughter inheritance

Accepted Answer

Horizontal inheritance pattern is indicative of a rare recessive trait, as it tends to appear in siblings rather than being passed directly from parent to child across multiple generations. This pattern suggests that both parents are carriers of the recessive allele.