Cell Division

IMPORTANT

Cell Division: Overview

This topic covers concepts, such as, Cell Division, Meiosis, Mitosis & Stem Cells etc.

Important Questions on Cell Division

EASY
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Colchicine prevents the mitosis of cells at which of the following stage?

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Why cell division is important for a living cell.

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Which of the following are the types of stem cells?

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Which of the following are the types of stem cells?

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Mitotic stages are not observed in

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Mitosis is the process by which eukaryotic cells

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Mitosis occurs in

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Anastral mitosis is the characteristic feature of

HARD
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A cell weighing 1mg grows to double its initial mass before dividing into two daughter cells of equal mass. Assuming no death, at the end of 100 divisions what will be the ratio of the mass of the entire population of these cells to that of the mass of the Earth? Assume that mass of the earth is 1024 kg and 210 is approximately equal to 1000.

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Mitosis occurs only in multicellular organisms.

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Match the items in column I with those in column II and choose the correct answer:

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

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Nerve cells divide by

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Fill in the blank with the correct option provided in the bracket.

One of the characteristics of epithelial tissue is that the cells will have a rapid rate of_____ (apoptosis/cell division/mutation).

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A bacterial cell divides every minute and takes one hour to fill the cup. How much time will it take to fill half the cup?

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Which of the following is not a significant aspect of mitosis?

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Following are some events of mitotic cell division, select the correct order in which these events occur.

(i) Condensation of chromosomes is completed

(ii) Chromosomes lose their identity as discrete elements

(iii) Sister chromatids separate

(iv) Initiation of the assembly of the mitotic spindle

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Which is unique to mitosis and does not occur in meiosis?

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A cell undergoes mitosis in 30 minutes. Find the number of cells produced after 24 hours if initially 10 cells are present.

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Which of the organisms show mitotic divisions in both haploid and diploid cells?

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Mitotic prophase is characterised by