You have a pea plant with inflated pods (I) and another pea plant with constrict

Question

You have a pea plant with inflated pods (I) and another pea plant with constricted pods (i). You wish to use the plants in a Mendelian experiment. You are sure that both plants are pure-breeding and that inflated (smooth) pods are dominant over constricted (pinched) pods.

What are the genotypes of the two parental plants? Describe the genotypes with both appropriate letters AND a combination of the terms homozygous, heterozygous, dominant, and recessive as appropriate. What are the phenotypes of the two plants? Fill in the blanks below to provide your answers.

The genotypes of the two parental plants are ___ x ___ (letters). The genotype could also be described as _______x ______(terms).

             The phenotypes of the parents would be _______ x ______.

Explanation / Answer

The genotypes pf two parental plants are pure breedin(PB) and smooth/inflated(D)

the genotype for F2 will be 1/4 smooth,1/2 smooth and constricted,1/4 constricted

The phenotypes of plants will be 3 smooth and 1 constricted

The Punnett Square allows us to determine specific genetic ratios.

Genotypic ratio of F2: 1 DD : 2 Dd : 1 dd (or 3 D_ : 1 dd)

Phenotypic ratio of F2: 3 smooth : 1 constricted

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