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Pea flower produce assured seed sets.Giv...

Pea flower produce assured seed sets.Give a reason

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Pea shows bud pollination i.e., anthers and stigmas of perfect flowers ripen before opening of buds so that self pollination takes place as a rule
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TRUEMAN BIOLOGY-REPRODUCTION-SECTION-D
  1. Pea flower produce assured seed sets.Give a reason

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  2. A woman has conceived and implantation has occurred in her uterus. Exp...

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  3. "Incompatibility is a natural barrier in the fusion of gametes". Justi...

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  4. Show diagrammatically the stages of embryonic development from zygote ...

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  5. Draw a schematic diagram of a human sperm and label the cellular compo...

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  6. (a)Give a schematic representation of spermatogenesis in humans . (b...

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  7. Explain with the help of a diagram the development of a mature embryo ...

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  8. Study the flow chart given below . Name the hormones involved at each ...

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  9. When and where in the body is oogenesis completed?

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  10. (a) How is the placenta connected to the embryo? (b ) Placenta acts ...

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

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  12. 2 difference between cross pollination and self pollination

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  13. Draw a labelled diagram of the structure of mature dicot embryo.

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

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

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

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  17. Embryo sacs of some apomitic species appear normal but contain diploid...

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

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

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

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  21. Describe the stage in embryo development in a dicot plant.

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