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प्रश्न
If the endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in the root tip cells will be ______.
पर्याय
8
16
24
32
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उत्तर
If the endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in the root tip cells will be 16.
Explanation:
The endosperm in angiosperms is usually triploid (3n), formed by the fusion of one male gamete (n) with two polar nuclei (each n), making its chromosome number three times the haploid number (n). Given the endosperm has 24 chromosomes, 24 = 3n, so n = 8. The root tip cells belong to the diploid sporophyte (2n), so the number of chromosomes = 2 × 8 = 16.
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संबंधित प्रश्न
Why does endosperm development preceeds that of zygote ?
Identify the characteristic feature/s of helobial endosperm.
At what stage of endosperm development, will you observe nuclear or cellular type of endosperm?
In angiosperms, triple fusion is required for the formation of ______.
The endosperm of gymnosperms is ______.
Mark the odd one.
Which of the following statements are true related to Seed X and Y?
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| SEED X | SEED Y |
- Seed X is dicot and endospermic or albuminous.
- Seed X is dicot and non-endospermic or non-albuminous.
- Seed Y is a monocot and endospermic or albuminous.
- Seed Y is a monocot and non-endospermic or non-albuminous.
Choose the correct option with the respect to the nature of the seed.
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The number of chromosomes in the leaf cells of a male plant is 40 and in the stem cells of a female plant is 60. If they are artificially hybridised, what will be the number of chromosomes in the endosperm?
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