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Is pollination and fertilisation necessa...

Is pollination and fertilisation necessary in apomixis ? Give reason

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### Step-by-Step Solution: 1. **Understanding Apomixis**: - Apomixis is a form of asexual reproduction where seeds are produced without fertilization. - It mimics sexual reproduction but does not involve the fusion of male and female gametes. 2. **Defining Pollination and Fertilization**: - **Pollination**: This is the transfer of pollen grains from the anther (male part) to the stigma (female part) of a flower. ...
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TRUEMEN BIOLOGY ENGLISH-REPRODUCTION-SECTION-D
  1. Is pollination and fertilisation necessary in apomixis ? Give 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. Explain the different stages of oogenesis in human starting from life ...

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

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

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

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  13. (a ) Trace the development of megaspore mother cell up to the formatio...

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

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

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