A pea plant with pure yellow (YY) round (RR) seeds were crossed with a plant having pure green (yy) wrinkled (rr) seeds.

(ii) If the offsprings of the $F_{1}$ -generation are self-pollinated, what would be the phenotypic ratio in $F_{2}$ –generation.

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Solution

Phenotypic ration in $F_{2}$ generation: 9: 3 : 3 : 1

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Similar questions

Q. A pea plant with pure yellow (YY) round (RR) seeds were crossed with a plant having pure green (yy) wrinkled (rr) seeds.

(i) What would be the nature of the offsprings in the

F_{1}

– generation?

A pea plant with pure Yellow (YY) Round (RR) seeds was crossed with a plant having pure green (yy) wrinkled (rr) seeds. What would be the nature of offspring in the F1- generation?

A pea plant with pure yellow (YY) and round (RR) seeds were crossed with a plant having pure green (yy) wrinkled (rr) seeds.

On which law, following is based:

The off-springs of the F-₁ generation are self-pollinated.

Q. Question 5
If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant (rr YY), the seeds produced in F1 generation are

(a) round and yellow
(b) round and green
(c) wrinkled and green
(d) wrinkled and yellow

Q. A pea plant with round seeds having large starch grains is crossed with another pure pea plant with wrinkled seeds having small starch grains. The

F_{1}

heterozygotes formed are self pollinated. What is the phenotypic ratio of plants with round seeds and intermediate starch grains to plants with wrinkled seeds and larger starch grains expected in

F_{2}

generation

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Calculation of Phenotypic and Genotypic Ratios

Standard XII Biology

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A pea plant with pure yellow (YY) round (RR) seeds were crossed with a plant having pure green (yy) wrinkled (rr) seeds. (ii) If the offsprings of the F1-generation are self-pollinated, what would be the phenotypic ratio in F2 –generation.

Phenotypic ration in F2 generation: 9: 3 : 3 : 1

A pea plant with pure yellow (YY) round (RR) seeds were crossed with a plant having pure green (yy) wrinkled (rr) seeds.

(ii) If the offsprings of the $F_{1}$ -generation are self-pollinated, what would be the phenotypic ratio in $F_{2}$ –generation.

Phenotypic ration in $F_{2}$ generation: 9: 3 : 3 : 1