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(a) Draw a labelled diagram of the secti...

(a) Draw a labelled diagram of the sectional view of a typical anatropous ovule.
(b) 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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TRUEMEN BIOLOGY ENGLISH-REPRODUCTION-SECTION-D
  1. Explain the different stages of oogenesis in human starting from life ...

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  2. (a) When and how does placenta develop in human female? (b) How is ...

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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 of megaspore mother cell up to the formatio...

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  6. (a ) Draw a labelled longitudinal 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 apomitic species appear normal but contain diploid...

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  10. Meiotic division during oogenesis is different from that in spermatoge...

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  11. Enumerate and describe any five reasons for introducing sex education ...

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

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  13. (a) Draw a schematic labelled diagram of a fertilised embryo sac of an...

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  14. (a) Draw a labelled diagram of sectional view of human ovary showing d...

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  15. (a) Draw a labelled diagram of the sectional view of a typical anatrop...

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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. (a) Draw a labelled schematic diagram of the transverse section of a m...

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  19. Write two differences between spermtogenesis and oogenesis

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

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