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What is the function of the two male gam...

What is the function of the two male gametes produced by each pollen grain in angiosperms.

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One male gemete unites with egg forming embryo. This process is called fertilisation of syngamy.
Another male gamete unite with two polar nuclei resulting in the formation of endosperm triple fusion.
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NCERT EXEMPLAR-SEXUAL REPRODUCTION IN FIOWERING PIANTS-Sexual Reproduction In Fiowering Piants
  1. Which is the triploid tissue in a fertilised ovule? How is the triploi...

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  2. Are pollination and fertilisation necessary in apomixis? Give reasons.

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  3. Identify the type of carpel with the help of diagrams given below

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  4. How is pollination carried out in water plants?

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  5. What is the function of the two male gametes produced by each pollen g...

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  6. List three strategies that a bisexual chasmogamous flower can evolve t...

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  7. Given below are the events that are observed in an artificial hybridis...

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  8. Vivipary automatically limits the number of offsprings in a litter. Ho...

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  9. Does self-incompatibility impose any restrictions on autogamy? Give re...

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  10. In the given diagram, write the names of parts shown with lines.

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  11. What is polyembryony and how can it be commercially exploited?

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  12. Are parthenocarpy and apomixis different phenomena ? Discuss their ben...

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  13. Why does the zygote begin to divide only after the division of primary...

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  14. The generative cell of a two celled pollen divides in the pollen tube,...

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  15. In the figure given below label the following parts-male gametes, egg ...

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  16. Starting with the zygote, draw the diagrams of the different stages of...

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  17. What are the possible types of pollinators in chasmogamous flowers. Gi...

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  18. With a neat, labelled diagram, describe the parts of a mature angiospe...

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  19. Draw the diagram of a microsporangium and lable its wall layers.Write ...

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  20. Can an unfertilised, apomictic embryo sac give rise to diploid embryo ...

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