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Mention the fate of all the components o...

Mention the fate of all the components of the embryo sac after fertilization

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(b) Fate of components of the embryo sac Antipodal and synergid degenerate. Egg cells form zygote (2n). Polar nuclei form primary endosperm nucleus (3n).
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TRUEMAN BIOLOGY-REPRODUCTION-SECTION-D
  1. Define Oogenesis. When and where in the body is oogenesis completed?

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  2. Mention any two sexually transmitted diseases in human and its causiti...

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  3. Give reasons why: (i) Most zygotes in angiosperms divide only afte...

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  4. Describe in sequence the events that lead to the development of a 3-ce...

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  5. (a ) Trace the development ofmegaspore mother cell up to the formation...

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  6. (a ) Draw a labelled longisectional view of an albuminous 'seed'· (b...

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  7. Describe the post-zygotic events leading to implantation and placenta ...

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  8. Although sexual reproduction is a long drawn, energy-intensive complex...

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  9. Embryo sacs of some apomictic species appear normal but contain diploi...

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  10. Describe oestrous cycle. In which group of animals is it observed.

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  11. Give examples for physical and surgical contraceptive methods.

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  12. The following is the illustration of the sequence of ovarian events (a...

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  13. Mention the function of Synergids and polar nuclei in embryo sac.

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  14. Describe the structure of blastula.

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  15. Mention the fate of all the components of the embryo sac after fertili...

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  16. (a) Draw a diagrammatic sectional view of a mature anatropous ovule an...

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  17. (a) Draw a diagrammatic sectional view of the female reproductive syst...

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  18. Mention examples for: a. Insect pollinated flower. b. Wind pollina...

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  19. Mention two types of gametogenesis.

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  20. (a) Draw a diagram of a mature embryo sac of an angiosperm and label t...

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