Ahhh Genetics Help Please!?

1- A normally pigmented man marries an albino woman. They have 3 children, 1 is albino.What is the Genotype of the father?





2- 2 intensely freckled parents have 5 children,2 that are intensely freckled 3 that aren't. (Assume the trait is governed by a single pair of alleles), is the intense freckledness an example of dominant or recessive inheritance, Why?





3-Epistasis Problem:





a- A male black Labrador retriever of genotype BbCc mates with a female Labrador retriever of genotype BbCc. What color can their offspring be?


b- In what % is each of them expected to occur? (use a dihybrid cross to answer)


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1- I think it's heterozygous b/c there are Different alleles involved,but Idk how to set up the Punnett Square to prove it is it PP x pp?





2- I know it's dominant b/c both parents are freckled but IDK how to prove that.





3- I just have no idea where to start.How do I set the punnett square up etc?





Please Help Me Understand How to do these!Thank You! = )

Ahhh Genetics Help Please!?
1. heterozygous: Punnett square is Pp x pp


2. dominant b/c if it was recessive that would be the only type of allele the parents would pass on and all their children would have to be intensely freckled


3. the Punnett square would be a 4x4 box with the B's and C's independant of each other. so on one side you have BC, Bc, bC, and bc with all of those showing up on the other side as well b/c the female was the same genotype as the male. Obviously the black color is dominant b'c the male is heterozygous and black so all heterozygous offspring and all homozygous dominant offspring will be black as well. the question gets a little fuzzy here though, i think you may have left some out b/c we don't know which of the two genes controls color or if they both do how the interaction between them works. I'd be glad to help further if you have any more information to supply.
Reply:I have another Genetics Question- if you don't mind helping- it's under my Questions or you can find it in the BIOLOGY section- it's my most recent one about phenotypic and genotypic ratios. Thank you! = ) Report It