Why each DNA molecules duplicates in readiness for their equuitable distribution in the two daughter cells during mitosis?

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Solution

Dear student,

Mitosis is basically a process that is used to produce daughter cells that are genetically identical to the parent cell. The cell replicates its chromosomes and then spilt the copied chromosomes equally so as to make sure that each daughter cell has a full set of it and this duplication of DNA molecules occurs during the interphase phase of cell cycle.

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Similar questions

During cell division, the chromosomes duplicate and distribute equally in the daughter cells. This type of cell division is called as ______________.

Q. Pick out the correct statements.
(A) Mitosis takes place in the somatic cells and meiosis takes place in the germ cells.
(B) During mitosis, the DNA replicates once for one cell division and in meiosis, the DNA replicates twice for two cell divisions.
(C) Mitosis and meiosis occur both in sexually reproducing organisms.

Fill in the blanks
(a) Mitosis occurs in our ..... cells.
(b) Mitosis produces two daughter cells whereas meiosis produces ...... daughter cells.
(c) Meiosis occurs only in ..... cells.
(d) Modern humans have 46 chromosomes. Their sperms and eggs will have......chromosomes each.
(e) During the pairing of chromosomes in meiosis, the ...... chromosomes come to lie side by side.
(f) The.......(s) are surrounded by radiating rays and termed as aster.

Q. Assertion: During meiotic cell division, the chromosome content of the daughter cells is halved by the end of meiosis I itself. Yet, meiosis II is essential for generation of haploid cells.
Reason: During meiosis II, the duplicated sister chromatids separate from each other and are distributed into the haploid daughter cells.

Question 31
Mitosis results in producing two cells which are similar to each other. What would be the consequence if each of the following irregularities occur during mitosis?
Nuclear membrane fails to disintegrate

Mitosis results in producing two cells which are similar to each other. What would be the consequence if each of the following irregularities occur during mitosis?
Duplication of DNA does not occur

Mitosis results in producing two cells which are similar to each other. What would be the consequence if each of the following irregularities occur during mitosis?
Centromeres do not divide

Mitosis results in producing two cells which are similar to each other. What would be the consequence if each of the following irregularities occur during mitosis?
Cytokinesis does not occur.

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