Question

The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic ratio for a cross between plants with red (RR) flowers and white (rr) flowers?

4 red : 0 white
3 red : 1 white
2 red : 2 white
1 red : 1 white

Answer 1

4 red : 0 white

Step-by-step explanation:

Answer 2

4 red : 0 white

Step-by-step explanation:

R R

r Rr Rr

r Rr Rr

Since the dominant allele is RR this means that it will always be red