In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F $_{1}$ generation?

50:50

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9:1

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1:3

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3:1

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Solution

The correct option is A 50:50
Yy (yellow seeded) x yy (green seeded)
Gametes: Y , y y
Fusion of gametes: Yy (yellow seeded) and yy (green seeded)
Thus, in F $_{1}$ generation the ratio of yellow seeded plants to that of green seeded plants is 50:50.
This cross is called as test cross where F $_{1}$ generation is crossed with recessive parent.
So, the correct answer is '50:50'

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In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F1 generation?

In pea plants, yellow seeds are dominant to green. If a heterozygous yellow seeded plant is crossed with a green seeded plant, what ratio of yellow and green seeded plants would you expect in F $_{1}$ generation?