An organism has pink flowers because of the genotype RW. what will the phenotype ratio be if these two flowers were bred together? A. 1:2:1 B 2:1:1 C 0:4:0 D 2:2:0
A:1:2:1
Answer:
The correct answer would be A. 1:2:1
The plant with genotype RW has pink flowers. Thus, it shows the phenomenon of incomplete dominance where the dominant trait is unable to express itself completely over the recessive allele.
The genotype of both the parent plants is RW. The gametes produced would be R and W.
The cross would produce offspring with three types of genotypes; RR, RW, and WW.
Thus, the phenotype ratio would be 1:2:1 that is, 1 (RR or red) : 2 (RW or pink) : 1 (WW or white).
