Question

if both mother and father have brown hair and brown eyes and their first child is also born with brown hair and brown eyes, but their second child has blonde hair and blue eyes; what characteristic traits is the second child expressing with his blonde hair and his blue eyes? answers: a - d a recessive gene b dominant gene c allel d mutated gene

Explanation:

Both parents have brown hair/eyes (dominant traits), but children have blonde hair/blue eyes. Recessive genes are expressed when two recessive alleles are inherited (one from each parent). Since parents must carry recessive alleles (as children show recessive traits), the second child’s traits come from recessive genes. Dominant genes would show brown traits, allele is a gene variant, mutated gene isn’t indicated here.

Answer:

A. Recessive Gene