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A pure dominant pea plant producing roun...

A pure dominant pea plant producing round - yellow seeds is crossed with pure recessive pea plant producing wrinkled - green seeds, The numbers of plants bearing round - green seeds in the `F_(1)` generation of Mendel's experiment is

A

0

B

1

C

3

D

9

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The correct Answer is:
A
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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 F_(1) -generation?

If a round, green seeded pea plant (RR yy) is crossed with wrinkled, yellow seeded pea plant, (rr YY) the seeds produced in F 1 generation are

In a cross between round yellow seeds (RRYY) and wrinkled green seeds (rryy) of pea plant, what is the ratio of plants obtained in F_(2) generation?

In one of his experiments with pea plants Mendel observed that when a pure tall pea plant is crossed with a pure dwarf pea plant, in the first generation, F_(1) only tall plants appeared. (i) What happens to the traits of the dwarf plants in this case? (ii) When the F_(1) generation plants were self-fertilised, he observed that in the plants of second generation, F_(2) both tall plants and dwarf plants were present. Why it happened? Explain briefly.

With the help of a cross done with garden pea plants, trace the work done by Mendel with a tall and a short plant to arrive at a 3:1 ratio in the F_(2) generation.

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