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A bivalent of meiosis i consists of...

A bivalent of meiosis i consists of

A

two chromatids and one centromere

B

two chromatids and two centromeres

C

four chromatids and two centromeres

D

four chromatids and four centromeres.

Text Solution

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The correct Answer is:
C
Bivalent is formed during zygotene. Each bivalent is made up of four chormatids, tow of each chromosme. Centromere is the part of chromosome. That attaches to the spindle during cell division. Each bivalent, thus, contains two centromeres.
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NCERT FINGERTIPS-CELL CYCLE AND CELL DIVISION-Cell Cycle And Cell Division
  1. During anaphase I of meiosis

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  2. Mitosis is characterised by

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  3. A bivalent of meiosis i consists of

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  4. Cells which are not dividing are likely to be at

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  5. Which of the events listed below is not observed ruing mitosis?

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  6. Identify the wrong statement about meiosis.

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  7. Select the correct statement about G(1) phase.

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  8. Assertion : Interphase occupies 75-95% of the total generation time. ...

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  9. Assertion: Some cells enter G(0) phase leading to inactivation of cell...

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  10. Assertion: G(1) phase is the interval between mitosis and initiation o...

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  11. Assertion: Prophase is the first stage of mitosis which follows S and ...

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  12. Assertion: Small disc-shaped structures at the surface of the centrome...

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  13. Assertion: During anaphase, centromere of each chromosome splits and c...

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  14. Assertion: Karyokinesis follows cytokinesis. Reason: Karyokinesis is...

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  15. Assertion: Cell growth results in disturbing the ratio between the nuc...

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  16. Assertion: The process of pairing of the chromosomes is called synapsi...

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  17. Assertion: Crossing over leads to recombination of genetic material on...

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  18. Assertion: The crossing over is an enzyme-mediated process. Reason:...

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  19. Assertion: The final stage of meiotic prophase I is diplotene. Reaso...

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  20. Assertion: The stage between the two meiotic divisions is called inter...

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