Dihybrid cross is made between RRYY (yellow round seed) and yyrr (wrinkled green seed) of Pea. $F_{2}$ ratio amongst round yellow, round green, wrinkled yellow and wrinkled green would be

9 : 3 : 3 : 1

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15 : 1 : 0 : 0

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9 : 3 : 4 : 0

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4 : 4 : 4 : 4

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Solution

The correct option is B 9 : 3 : 3 : 1

A cross is made between homozygous yellow round seeds(YYRR) to another homozygous green wrinkled seeds(yyrr). In the F1 generation, all plants are heterozygous yellow round(YyrRr). When this plant is subjected to self pollination, in the F2 generation, 9 plants are Yellow round, 3 plants are yellow wrinkled, 3 plants are green round and 1 plant is green wrinkled are formed.

The dihybrid phenotypic ratio is 9:3:3:1.
So, the correct option is ‘9:3:3:1’.

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Similar questions

Question 5
If a round, green-seeded pea plant (RRyy) is crossed with wrinkled, yellow-seeded pea plant (rrYY), the seeds produced in F1 generation are

(a) round and yellow
(b) round and green
(c) wrinkled and green
(d) wrinkled and yellow
( Round-R, Green-y, Wrinkled-r, Yellow-Y)

Q. A pea plant with yellow and round seeds (YYRR) is crossed with a pea plant having green and wrinkled (yyrr) seeds, then in

F_{2}

generation of this dihybrid cross, 320 plants are produced. Out of which 180 plants have same phenotypic characters. Identify this phenotype.

Q. A cross between parent pea plants having green round seeds with those having yellow wrinkled seeds would produce

F_{1}

plants with ____.

A pea plant with round and yellow seeds (RRYY) is crossbred with another pea plant having wrinkled and green seeds (rryy). Among the offspring obtained in F₂ generation, plants with which traits were found to be maximum in number?

Q. A homozygous round yellow seed is crossed with a wrinkled green seed. What will be the ratio of round green, wrinkled green, round yellow, and wrinkled yellow seeds produced in the F2 progeny?

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Dihybrid cross is made between RRYY (yellow round seed) and yyrr (wrinkled green seed) of Pea. F2 ratio amongst round yellow, round green, wrinkled yellow and wrinkled green would be

Dihybrid cross is made between RRYY (yellow round seed) and yyrr (wrinkled green seed) of Pea. $F_{2}$ ratio amongst round yellow, round green, wrinkled yellow and wrinkled green would be