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Select the corret matches (a) S-phase...

Select the corret matches
(a) S-phase - DNA replication
(b) Zygotene - Synapsis
(c) Diplotene - Crossing over
(d) Meiosis - Both haploid and diploid cells
`(e)`Gap 2 phase - Quiescent stage

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Mark incorrect statements :- (A) Meiosis involves only a single cycle of DNA replication (B) Four haploid cells are formed at the end of meiosis-I ( C ) Meiosis occurs in diploid cells (D) In yeast, cell cycle takes about 90 minutes.

What is not true about cell cycle ? a. During G_(1) phase there is active synthesis of RNA and proteins but no change in its DNA content b. In synthesis or S phases, each chromosome carriers a duplicate set of genes c. During G_(2) phase, a cell contains double the amount ($C) of DNA present in the original diploid cell (2C) d. In S-phase a cell doubles the original diploid (2n) chromosome number

Choose the correctly matched pairs and correct option (a) Leptotene - chromosomes become invisible (b) Zygotene - pairing of homologous chromosomes (c) Pachytene - Dissolution of synaptonemal complex takes place (d) Diplotene - Bivalent chromosomes appear as tetrads (e) Diakinesis - Terminalisation of chiasmata takes place

If we ignore the effect of crossing over, how many different haploid cells arise by meiosis in a diploid cell having 2n=12

Arrange the following events of meiosis in correct sequence : (a) Crossing over (b) Synapsis ( c ) Terminalisation of chaismata (d) Disappearance of nucleolus

Arrange the following events of meiosis in correct sequence (a) Crossing over (b) Synapsis (c) Terminalisation of chiasmata (d) Disappearance of nucleolus.

Arrange the following events of meiosis in correct sequence (A) Crossing over (B) Synapsis (C) Termilisation of chiasmata (D) Disappearance of nucleolus

Match the columns and choose the correct answer {:((p),"Mitosis",(i),"Occurs in diploid cells only",),(,,(ii),"Occurs in both haploid and diploid cells",),((q),"Meiosis",(iii),"Daughter and parent cells have same chromosome number",),(,,(iv),"Synapsis of homologous chromosomes",):}

ARIHANT NEET-CELL CYCLE AND CELL DIVISION-Chapter Exercises (C) Medical entrances gallery (collection of questions asked in NEET & Various medical entrance exams)
  1. Select the correct option with respect to mitosis

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  2. The phragmoplast is organised at the

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  3. Select the corret matches (a) S-phase - DNA replication (b) Zygot...

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  4. The stage between two meiotic divisions is called

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  5. How many chromosomes will the cell have at G(1),after S and after M-ph...

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  6. Chromatid formation takes place in

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  7. Longest phase of meiosis is

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  8. Which of the protein is found in spindle fibres?

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  9. Which stages of cell division do the following figures A and B represe...

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  10. During meiosis I, the bivalent chromosomes clearly appear as tetrads d...

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  11. Which phase comes in between the G(1) and G(2) phase of cell cycle. Or...

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  12. During mitosis ER and nucleolus begin to disappear at

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  13. Synapsis occurs between :

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  14. Assertion: Reduction division occurs in anaphase-I. So there is no nee...

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  15. Given below is a schematic break-up of the phases/stages of cell cycle...

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  16. In meiosis-I, a bivalent is an association of

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  17. Replication of centriole occurs during

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  18. Crossing-over occurs in

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  19. Which of the following events occur during G(1)-phase?

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  20. The stage during which cell decides to et specialised is

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