Question

In humans, having freckles is the result of a dominant gene, and not having freckles is a recessive trait. If a freckled man who is homozygous for this trait has a child with a woman who does not have freckles, which of the following best describes how their child would most likely appear?

Their child would not have freckles if the father passes on the recessive allele.

Their child would have freckles.

Their child would not have freckles.

Their child would have freckles since the mother is a carrier for freckles.

Answer 1

It is easiest if you start by assigning a notation (like a letter) to the gene. For example, the lower case f would indicate a recessive allele and big F would stand for a dominant allele.

Then write out the parents' genotypes using your new notation...

Answer 2

Give it a try for me... :D

Answer 3

ok

Answer 4

So using the f or F to indicate a recessive or dominant allele, write out the genotypes of the Dad and Mom....

Answer 5

so the dad would have FF since he has freckles and the mom would have ff?

Answer 6

Yes, exactly. The next thing to do is use those genotypes in a Punnett square. The Punnett square will give you what the offsprings *genotypes* are.

Answer 7

Have you met Punnett squares yet?

Answer 8

yea i did the punnet squre.. is this correct?