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Show diagrammatically the stages of embr...

Show diagrammatically the stages of embryonic development from zygote upto implantation in humans .

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Zygote -A
Cleavage -B 2 celled stage
C 4 celled stage
D Morula with vitelline membrane
E Blastocyst with trophoblast and inner cell mass
F Implantation of blastocyst
G In the endometrium within wall
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TRUEMAN BIOLOGY-REPRODUCTION-SECTION-D
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  2. "Incompatibility is a natural barrier in the fusion of gametes". Justi...

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

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

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

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

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

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

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

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

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  11. 2 difference between cross pollination and self pollination

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

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

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

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

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

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

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

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

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

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