X or y chromosome from the male, added to the X chromosome from the female
1:D
2:A
3:D
4:B
5:D
.................................................................
Answer:
Explanation:
Purple flowers (P are dominant to white (p), and long pollen (L) is dominant to short pollen (l).
A true breeding variety of peas with purple flowers and short pollen is crossed to a true breeding variety with white flowers and long pollen.
Parent genotype PPll x ppLL
F1 genotype will be PpLl
self crossing of F1 PpLl x PpLl
b. What proportion of the F2 will have purple flowers with long pollen?
Pp x Pp = 3/4 purple flowers, 1/4 white flowers
Ll x Ll = 3/4 long pollen, 1/4 short pollen
Thus answer is 3/4 x 3/4 = 9/16 purple flowers with long pollen
c. What proportion will have white flowers and short pollen?
thus, answer is 1/4 white flowers x 1/4 short pollen = 1/16.
