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What is corona radiata?...

What is corona radiata?

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Corona radiata is the outermost envelope and is formed of radially arranged follicular cells held together by hyaluronic acid
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Explore conceptually related problems

Hyaluronic acid which binds corona radiata cells is a :-

Which one holds corona radiata?

[" Ques no."2" : Cumulus oophorous is "],[" the term used for "],[" grannulosa cells "],[" oocyte and grannulosa cells "],[" Corona radiata cells "],[" oocyte and corona radiata."]

which of the following statements regarding fertilization and implantation are incorrect ? I. During fertilization , a sperm first comes in contact with the corona radiata cells produced by the ovum. II. Fertilization occurs only if sperm and ovum are simultaneously transported to the ampullary region. III. Implantation occurs about 7 days after fertilization . IV. The continuous division of morula leads to the formation of zygote.

Cells of corona radiata disperse just

Fill in the blanks : ……….. Present in the acrosome hydrolyses hyaluronic acid of the follicular cells and . . . . . Enzyme dissolves corona radiata portion aroung the secndary oocyte by hydrolysing their ground substances .

(a) Draw a diagram of the structure of a human ovum surrounded by corona radiata. Label the following parts : (i) Ovum, (ii) Plasma Membrane, (iii) Zona Pellucida (b) State the function of Zona Pellucida.

In corona radiata, the cells are held together by

Distinguish between :(a) Spermatogenesis and spermiogenesis .(b) Corona Radiata and zona pellucida.

[" Which layer of blastocyst gets "],[" attached to the endometrium at the "],[" time of implantation? "],[" Trophoblast "],[" Zona pellucida "],[" Inner cell mass "],[" Corona radiata "]

MODERN PUBLICATION-HUMAN REPRODUCTION-REVISION EXERCISES (VERY SHORT ANSWER TYPE QUESTION (B)QUESTIONS FROM CBSE EXAMINATIONS)
  1. Name the sperm lysin

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  2. Why is cleavage in mammals referred to as simple holoblastic?

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  3. What is corona radiata?

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  4. Why is oxytocin called "birth hormone" ?

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  5. Which germ layer forms CNS?

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  6. From which germ layer do the following organs differentiated (i) K...

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  7. At what stage of development, does the human embryo gets implanted to ...

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  8. What is trophoectoderm?

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  9. What are morphogenetic movements?

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  10. What term is used for the chemical which occurs in the sperm's acrosom...

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  11. What does the blastocoel of a mammalian embryo phylogenetically signif...

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  12. Where does fertilization normally take place in a human female?

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  13. In the whiptail lizards only females are born generation after generat...

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  14. At what stage of life is cogenesis initiated in a human female? When d...

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  15. Name the embryonic stage that gets implanted in the uterine wall of a ...

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  16. Name the phase all organisms have to pass through before they can repr...

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  17. Write the location and function of the sertoli cells in humans.

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  18. When do the oogenesis and the spermatogenesis initiate in human female...

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  19. Mention the difference between spermiogenesis and spermiation.

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  20. Where is acrosome present in humans? Write its function.

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