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Mendel and the Pea Plant

In a homozygo...

Question

In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).

(i) What is the phenotype and genotype of the $F_{1}$ -generation if a plant bearing pure axial flowers is crossed with a plant bearing pure terminal flowers?

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Solution

Phenotype of $F_{1}$ -generation: All plants with axial flowers.

Genotype of $F_{1}$ -generation: Aa

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Q. In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).

(i) What is the phenotype and genotype of the F, generation if a plant bearing pure axial flowers is crossed with a plant bearing pure temiinal flowers?

(ii) Draw a Punnett square board to show the gametes and offsprings when both the parent plants are heterozygous for axial flowers.

(iii) What is the phenotypic ratio and genotypic ratio of the above cross shown in (ii) ?

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In a homozygous pea plant, axial flowers $(A)$ are dominant over terminal flowers $(a) .$

$(i i i)$ What is the phenotypic ratio and genotypic ratio of the above cross?

In a homozygous pea plant, axial flowers (A) are dominant over terminal flowers (a).

What are the phenotypic ratio and genotypic ratio of the above cross shown in (ii)?

Q. Application based questions.
A true breeding pea plant homozygous for axial violet flowers is crossed with another pea plant with terminal white flowers
What would be the phenotype and genotype of F1 and F2 generations?

Q. A pea plant heterozygous for axial flowers is crossed with a pea plant bearing terminal flowers. Predict the phenotypes of the offspring produced as a result of this cross.

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Mendel and the Pea Plant

Standard XII Biology

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