I need to know the genetic ratio for the following example.?

Question

I'm not sure how to work this out can someone please help me?

Dimples and Freckles are both dominant traits. A person who is heterozygous for freckles and heterozygous for dimples mates with a person who is homozygous recessive for freckles and heterozygous for dimples.

Please provide the ratio of the following, freckles and dimples both present : freckles present and dimples absent : freckles absent and dimples present : freckles and dimples both absent.

Answer 1

Dimples= D;   No Dimples= d

Freckles= F;   No Freckles= f

Person-1= Heterozygous for both= DdFf

Person-2= Ddff (Homozygous for No freckles & Heterozygous for dimples)

Gametes-

Person-1= (4 types) DF, Df, dF, df

Person-2= (2 types) Df, df

cross them using punnett square,

Pogeny = DDFf, DdFf, DDff, Ddff, DdFf, ddFf, Ddff, ddff

Both present = (3) = DDFf, DdFf, DdFf  

F present D absent= (1) = ddFf

D present F absent= (3) = DDff, Ddff, Ddff

Both absent= (1)= ddff

Ratio= 3:1:3:1