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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
At what stage of endosperm development, will you observe nuclear or cellular type of endosperm?
In dicots, the pollen grains are usually ______
If an angiospermic male plant is diploid and female plant tetraploid, the ploidy level of endosperm will be ______.
Double fertilization leading to initiation of endosperm in angiosperms require ______.
The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in the gametes?
Mark the odd one.
The type of evolution where the central part is occupied by free nuclear and the peripheral part by cells is observed in ______.
The diagram given below shows the three types of endosperms in angiosperms.
 |
 |
 |
| Type 1 | Type 2 | Type 3 |
- Identify the three types of endosperms shown above.
- Name the type of endosperm which commonly occurs in polypetalous dicots.
What substance found in coconut water is utilized as a nutrient medium in plant tissue culture experiments?
During the post-fertilisation development inside the ovule, how do the embryo and endosperm develop relative to each other?
