Question

The shaded individuals in the pedigree diagram below have a recessive trait

called attached earlobes.
I.
II.
The person labeled A is best described as:
OA. a male with one recessive allele.
OB. a female with two recessive alleles.
OC. a male with two recessive alleles.
O D. a female with one recessive allele.
2

Answer 1

OA a male with one recessive allele

Step-by-step explanation:

This is because dominant trait A means attached earlobes is a dominate trait and it is the only genes including the gene OA. If it was Oa it would be recessive and not a dominant trait. I'm not a 100% on this lmk if its wrong and i will redo it.