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Define the term crossing-over. Name the ...

Define the term crossing-over. Name the stage of cell cycle when it occurs.

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Exchange of genetic material between non-sister chromatids of homologous chromosomes is called crossing over. It occurs during pachytene of Prophase=1 of meiosis,
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MODERN PUBLICATION-CELL CYCLE AND CELL DIVISION-REVISION EXERCISE ( SHORT ANSWER QUESTION)
  1. What is G.-phase? What changes occur in it?

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  2. Give the structure of spindle apparatus.

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  3. Distinguish between plant and animal cell mitosis.

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  4. What is disjunction? Describe the stage when it occurs.

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  5. Why is meiosis called the reductional division,whereas mitosis is call...

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  6. What is synaptonemal complex? Give its significance.

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  7. Differentiate between gametic meiosis and zygotic mciosis.

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  8. Define the term synapsis. Name the stage of cell cycle when it occurs.

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  9. Define the term crossing-over. Name the stage of cell cycle when it oc...

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  10. Define the term chiasmata. Name the stage of Prophase-I when it occurs...

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  11. How does cell division of a typical plant cell differ from that of a t...

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  12. What is the significance of meiosis?

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  13. What are homologous chromosomes? What happens to homologues during mei...

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  14. Anaphase-I of meiosis differs from anaphase of mitosis in one essentia...

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  15. Why does a Multicellular organism require two type of cell division?W...

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  16. Discuss the significance of mitosis

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  17. Why do we term meiosis-I as reductional division and mitosis as equati...

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  18. Differentiate three types of meiosis.

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  19. List the most important feature of the following stages : (i) S-phase...

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  20. Differentiate between mitosis and meiosis.

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