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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

A

A & B

B

C&D

C

C&E

D

A, C&E

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A
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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",):}

MODERN PUBLICATION-CELL CYCLE AND CELL DIVISION-COMPETITION FILE (OBJECTIVE TYPE QUESTION)(A.MULTIPLE TYPE QUESTIONS (MCQS)):(FROM AIMPT &OTHER COMPETITIVE EXAMINATION)
  1. Chiasmata formation takes place during

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  2. Select the correct option with respect to mitosis

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

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  4. During meiosis, the alleles of the parental pair separate or segragate...

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  5. The stage between two meiotic divisions is called

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  6. During gamete formation, the enzyme recombinase participates during

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  7. Microtubule depolymerizing durg such as colchicine is expected to

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  8. Which of the following statements is incorrect about G(0) phase

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  9. Beads on string like structures of A are seen in B, which further cond...

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  10. Colchicine is obtained from

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  11. A stage in mitosis that starts towards the middle of anaphase and is c...

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  12. if the number of chromosome in root cell is 14 , then what will be th...

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  13. The term synaptonemal complex refers to site of

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  14. The number of autosomes in a normal human cell is :

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  15. The chromosomes become gradually visible with compaction of chromatin ...

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  16. Choose the correctly matched pairs and correct option (a) Leptotene ...

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  17. Which of the following events are not characteristic features of telop...

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  18. The complex formed by a pair of synapsed homologous chromosomes is cal...

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  19. Meiosis takes place in

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  20. A stage in cell shown in the figure, Select the answer which gives cor...

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