Attached earlobes are recessive to free earlobes What phenotype ratio is expected when an individual with attached earlobes mates with an individual heterozygous for free earlobes?

Attached earlobes are recessive to free earlobes. What genotypic ratio is expected when an individual with attached earlobes mates with an individual heterozygous for free earlobes?

25%

It all depends on the genes that are being inherited.

The trait for attached earlobes is recessive. You can see this by observing that the approximate proportions of people with attached vs free earlobes is 1:3.

Unattached earlobes are dominant while attached are recessive. It is very rare to have both.