Question

Both Parent Plant 1 and Parent Plant 2 have flowers that are pink. Each has a dominant Red allele and a dominant White allele. Neither allele alone can produce enough pigment to be either white or red, so the flowers are pink. Complete the Punnett Square to answer the questions.



What percentage of the flowers will be pink?

R W

W RW
R

100

50

75

25

Answer 1

Fill the RW × RW Punnett square:

R  W
R → RR  RW
W → RW  WW

Genotypes: 1 RR (red) : 2 RW (pink) : 1 WW (white). So 2 out of 4 = 50% of the flowers will be pink.