Question

genetics and heredity exam
in humans, free earlobes (e) are dominant to attached earlobes (e)
a woman has free earlobes, but her mother has attached earlobes
what is the most likely genotype of the woman?
use e to represent free earlobes and e to represent attached earlobes.
genotype:

Explanation:

Step1: Identify mother's genotype

Attached earlobes are recessive, so mother's genotype is $ee$.

Step2: Inherit one allele from mother

The woman must get one $e$ allele from her mother.

Step3: Determine woman's dominant allele

The woman has free earlobes (dominant trait), so she must have one $E$ allele.

Step4: Combine alleles for woman's genotype

Woman has one $E$ and one $e$ allele, so genotype is $Ee$.

Answer:

$Ee$