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Imagine you are looking out at a field of flowers. 774 plants have red flowers; 226 plants have white flowers. Based on Mendel's work, what can you say about the genotypes of the parents of this field of flowers?
A) The parents are heterozygous for flower color.
B) The parents are homozygous dominant for flower color.
C) The parents are homozygous recessive for flower color.
D) You cannot determine anything about the parents without seeing them.

Respuesta :

I believe that the answer is a., because heterozygous plants reproduce in a ration of 3:1.

Answer:

The most appropriate answer would be A) The parents are heterozygous for flower color.  

The ratio of the red and white flower plants is approximately equaled to 3:1.

Thus, the phenotype ratio is 3:1.

In Mendelian cross, this ratio is obtained only when both the parents are heterozygous for the character.

For example, the cross of Rr and Rr would produce the offspring with three types of genotype in the ratio 1:2:1.

The phenotype ratio would be 3 (red):1 (white).

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