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प्रश्न
Two pea plants one with round green seeds (RRyy) and another with wrinkled yellow (rrYY) seeds produce F1 progeny that have round, yellow (RrYy) seeds. When F1 plants are selfed, the F2 progeny will have new combination of characters. Choose the new combination from the following
- Round, yellow
- Round, green
- Wrinkled, yellow
- Wrinkled, green
विकल्प
(i) and (ii)
(i) and (iv)
(ii) and (iii)
(i) and (iii)
उत्तर
(ii) and (iii)
Explanation -
Result obtained after selfing of F1 progeny - The new combination formed in F2 progeny is Round, green (RRyy) and Wrinkled, yellow (rrYY)
Punnett square - Selfing of F1 progeny
| Gametes | Ry | RY | rY | ry |
| Ry | RRyy | RRYy | RrYy | Rryy |
| RY | RRYy | RRYY | RrYY | RrYy |
| rY | RrYy | RrYy | rrYY | rrYy |
| ry | Rryy | RrYy | rrYy | rryy |
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संबंधित प्रश्न
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
What is the phenotypic ratio and genotypic ratio of the above cross in (ii)?
In Mendel’s experiments, tall pea plants (T) are dominant over dwarf pea plants (t).
State Mendel’s Law of Dominance.
Define the following:
Recessive
State Mendel's law of dominance.
Define Mendel’s law of segregation.
Hybridization between Tt × tt gives rise to the progeny of ratio ______.
If two pea plants having red (dominant) coloured flowers with unknown genotypes are crossed, 75% of the flowers are red and 25% are white. The genotypic constitution of the parents having red coloured blowers will be:
Which one of the following cannot be explained on the basis of Mendel’s Law of Dominance?
At which stage, did Mendel observe the segregation of alleles in garden pea plants?
