Question

In the family tree below, people with the recessive trait of attached earlobes are shaded gray.



What must be true about the person labeled "A"?
A. It is a male with at least one dominant allele.
B. It is a male with two dominant alleles.
C. It is a female with at least one dominant allele.
D. It is a female with two dominant alleles.

Answer 1

First, is it a male or a female? :)

Answer 2

I would assume A, since the sister has attached earlobes, so both parents must have the recessive allele along with the dominant, which means that if the child has the dominant trait, but the parents both have recessive and dominant, then the child has both recessive and dominant as well (assuming the boxes are males)

Answer 3

squares are male and circles are females

Answer 4

yes
123=leonardo

Answer 5

i was just answering petitemes question

Answer 6

thank you nerd girl6

Answer 7

Any time @demonguy! Let me know if you need any more help!

Answer 8

ok leonardo and thanks nerdgirl6 . :)