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the following punnett square shows a cross between two hybrid flowers. if the flowers show incomplete dominance, what fraction are pure red? I NEED HELP PLZ!

the following punnett square shows a cross between two hybrid flowers. if the flowers-example-1
User Manoj Kasyap
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2 Answers

15 votes
15 votes
I think it’s 1/4!!!!
User Barton Chittenden
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20 votes
20 votes

Answer:

1/4

Step-by-step explanation:

Incomplete dominance is when the dominant ("R") gene is not completely dominant and cannot fully mask or cover the recessive ("r") gene. This means that it will result in both genes expressing and a mix of traits appearing. In the case of a flower with "R" genes for red and "r" genes for white, the following possibly combinations exist:

RR = all red, no white "r" gene

Rr = pink, as both the "R" and "r" genes are expressed

rr = white, no red "R" gene

The Punnett Square shows that only one of the four phenotypes is RR and red.

User Ahmed Alejo
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