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What is the fate of the male gametes discharged in the synergid?
- a)One fuses with egg other(s) degenerate (s) in the synergid.
- b)All fuse with the egg.
- c)One fuses with the egg, other(s) fuse(s) with synergid nucleus.
- d)One fuses with the egg and other fuses with central cell nuclei.
Correct answer is option 'D'. Can you explain this answer?
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What is the fate of the male gametes discharged in the synergid?a)One ...
In flowering plants, out of the two male gametes discharged in synergids, one fuses with the egg and other fuses with the secondary or definitive nucleus present in central cell.
Egg (n) + 1st male gamete (n) → Zygote (2n)
Egg (n) + 1st male gamete (n) → Zygote (2n)
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What is the fate of the male gametes discharged in the synergid?a)One ...
Explanation:
Male Gametes Discharged in the Synergid:
- When the male gametes are discharged in the synergid, one of the male gametes fuses with the egg cell to form a zygote.
- The other male gamete fuses with the central cell nuclei, which contain two polar nuclei, to form the endosperm.
Fate of Male Gametes:
- One male gamete fuses with the egg cell to form a diploid zygote.
- The other male gamete fuses with the central cell nuclei to form a triploid endosperm.
- This process is known as double fertilization and is unique to angiosperms.
Significance of Double Fertilization:
- Double fertilization ensures the formation of both the embryo and endosperm in flowering plants.
- The endosperm provides nourishment to the developing embryo.
- This process is essential for the successful development of seeds in angiosperms.
Conclusion:
In conclusion, when male gametes are discharged in the synergid, one fuses with the egg cell to form a zygote, while the other fuses with the central cell nuclei to form the endosperm. This process of double fertilization is crucial for the development of seeds in angiosperms.
Male Gametes Discharged in the Synergid:
- When the male gametes are discharged in the synergid, one of the male gametes fuses with the egg cell to form a zygote.
- The other male gamete fuses with the central cell nuclei, which contain two polar nuclei, to form the endosperm.
Fate of Male Gametes:
- One male gamete fuses with the egg cell to form a diploid zygote.
- The other male gamete fuses with the central cell nuclei to form a triploid endosperm.
- This process is known as double fertilization and is unique to angiosperms.
Significance of Double Fertilization:
- Double fertilization ensures the formation of both the embryo and endosperm in flowering plants.
- The endosperm provides nourishment to the developing embryo.
- This process is essential for the successful development of seeds in angiosperms.
Conclusion:
In conclusion, when male gametes are discharged in the synergid, one fuses with the egg cell to form a zygote, while the other fuses with the central cell nuclei to form the endosperm. This process of double fertilization is crucial for the development of seeds in angiosperms.
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What is the fate of the male gametes discharged in the synergid?a)One fuses with egg other(s) degenerate (s) in the synergid.b)All fuse with the egg.c)One fuses with the egg, other(s) fuse(s) with synergid nucleus.d)One fuses with the egg and other fuses with central cell nuclei.Correct answer is option 'D'. Can you explain this answer?
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