Incomplete dominance is shown in the fruitloop flower, WW are white, RR are red and WR are pink.
Use scratch paper to set up a Punnett square for a cross of the F1 generation (pink flowers).
What is the percentage of pink flowered offspring in the F2 generation of two pink flowering fruitloop plants?
a
100% pink
b
75% pink
c
50% pink
d
25% pink
e
no pink
To set up the Punnett square, we need to represent the genotypes of both parent plants. Since both parent plants are pink, they must have the genotype WR.
The Punnett square for the cross of two WR plants would look like this:
W R
------------
W | WW WR
R | WR RR
In this Punnett square, there are a total of 4 possible outcomes for the offspring. Out of these 4 possibilities, only 1 outcome will result in pink flowers (WR). Therefore, the percentage of pink flowered offspring in the F2 generation is:
1/4 = 25%
So, the correct answer is d) 25% pink.