Question

11.Give an example of autosomal recessive trait in humans. Explain its pattern of inheritance with the help of a cross.

Answer 1

Answer:

Fused earlobes is an example of autosomal recessive trait

Explanation:

Let F represent free ear lobes and f represent fused earlobes.

genotype of parents- F,f,Ff

gamets - F,f,F,f

cross -

F. f

F. FF. Ff

f. Ff. ff

trait ff represents fused ear lobes and is not expressed in the presence of dominant trait F.