1. In a species of flower, pink flower color results from an incomplete dominanc

Question

1. In a species of flower, pink flower color results from an incomplete dominance of red over white flower color. What would be the expected F phenotypes in a cross between a white flower and a red flower? What would be the expected F? generation in a cross between two pink flowers? List the genotype and phenotype ratios. 2. 3. A species of chicken has incomplete dominance in feather coloration. Black roosters mated with white hens to produce black and white chickens that are bluish in appearance. (Normally black is dominant over white.) If a blue rooster is mated to a white hen, what are the Fi possiblities? List the genotype and phenotype ratios. Scientist were interested in the trait wavy hair in humans. They decided to check the children born from 30 wavy hair parents for the type of hair. The following ration appeared: 25 curly: 51 wavy: 21 straight. We know that curly hair is normally dominant over straight hair. Set up a punnett square that could explain the approximate ratio in the offspring. 4.

Explanation / Answer

Ans 1 :

Let the genotype of the red flower be RR and that of white flower be rr.

So the gametes of RR will be R and that of rr will be r.

When they are allowed to mate , the expected F1 progenies will all have the genotype Rr , and the phenotype pink.

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