Okay so number 2 as I understand it we have to make two different Punnett squares. One should show the cross between DD and Dd. The other should be Dd and dd. The first would result in 100% hearing offspring but the second would be only 50% hearing and 50% deaf. You would be able to tell the genotype of the male dog depending upon whether any of the offspring are deaf. Two hearing dogs could produce deaf offspring if one parent genotype was Dd. Hope this helped!!
Yes I did the 2 Punnett squares for the 2 types of possible males. I also use a 3rd Punnett square for the question of how 2 hearing dogs could produce a deaf offspring.
The question about determining what the genotype of the father if he does not produce any deaf offspring is trickier. You need to think about the difference between probably offspring and actual offspring
Okay so number 2 as I understand it we have to make two different Punnett squares. One should show the cross between DD and Dd. The other should be Dd and dd. The first would result in 100% hearing offspring but the second would be only 50% hearing and 50% deaf. You would be able to tell the genotype of the male dog depending upon whether any of the offspring are deaf. Two hearing dogs could produce deaf offspring if one parent genotype was Dd. Hope this helped!!
ReplyDeleteYes I did the 2 Punnett squares for the 2 types of possible males. I also use a 3rd Punnett square for the question of how 2 hearing dogs could produce a deaf offspring.
ReplyDeleteThe question about determining what the genotype of the father if he does not produce any deaf offspring is trickier. You need to think about the difference between probably offspring and actual offspring