Multiple Choice Questions

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Which of the followings does not occur in the interphase of eukaryotic cell division?

  • Increase of ATP synthesis

  • Increase of DNA synthesis

  • Increase of RNA synthesis

  • Reduction in cell size


D.

Reduction in cell size

Interphase is the living phase of the cell. Here, cell spends its majority of time and prepares itself for cell division. This increases its size and makes a copy of its DNA. Majority of eukaryotic cells spends most of their time in interphase.


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Match the item in column I with those in column II and the choose the correct answer.

Column I Column II
A. Mitosis 1. Occurs in diploid cells only
B. Meiosis 2. Occurs in both haploid and diploid cells
  3. Daughter and parent cells have same chromosome numbers
  4. Synapsis of homologous chromosomes.

  • A- 1; B- 2

  • A- 2; B- 3

  • A- 3; B- 4

  • A- 4; B- 1


During mitosis nuclear membrane disappears at

  • early prophase

  • late prophase

  • metaphase

  • anaphase


Spindle fibres of mitotic cell are made up of

  • tubulin

  • actin

  • myosin

  • collagen


During meiosis crossing over occurs at

  • pachytene

  • zygotene

  • leptotene

  • diakinesis


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During meiosis crossing over occurs between which part of homologous chromosome ?

  • Sister chromatids

  • Non-sister chromatids

  • Genes

  • Alleles


In cell cycle, during, which phase chromosomes are arranged in equatorial plate ?

  • Metaphase

  • Anaphase

  • Telophase

  • Prophase


In synapsis two homologous chromosomes are connected at

  • centromeres

  • chromomeres

  • telomeres

  • none of these


Stages in proper sequence of prophase- I are

  • zygotene, leptotene, pachytene, diakinesis

  • leptotene, zygotene, pachytene, diplotene and diakinesis

  • eptotene, pachytene, zygotene, diakinesis and diplotene

  • diplotene, diakinesis, pachytene, zygotene and leptotene


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The stage of cell cycle when cell has undergone differentiation is :

  • G0

  • G1

  • G3

  • G4


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