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Question
Explain the significance of mitosis.
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Solution 1
(i) It helps to maintain linear heredity of an organism by keeping the chromosome number constant in daughter cells.
(ii) It helps in the development of an organism from zygotic stage to adult stage.
(iii) It is the means of repair and regeneration of cells.
(iv) Asexual reproduction is accomplished only through mitosis.
(v) Details of mitosis are similar in all organisms which emphasizes the unity of life.
Solution 2
- As mitosis is equational division, the chromosome number is maintained constant.
- It ensures equal distribution of the nuclear and the cytoplasmic content between the daughter cells, both quantitatively and qualitatively. Therefore, the process of mitosis also maintains the nucleo-cytoplasmic ratio.
- The DNA is also equally distributed.
- It helps in the growth and development of organisms.
- Old and worn-out cells are replaced through mitosis.
- It helps in the asexual reproduction of organisms and vegetative propagation in plants.
RELATED QUESTIONS
Draw a labelled diagram to show the metaphase stage of mitosis in an animal cell having ‘6’ chromosomes.
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- Which of these is/are shown in the correct direction?
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- Only A and C
- All the three
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Somatic cells divide by
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During mitosis which of the following disintegrate _________
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Somatic cells divide by ___________
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Cytokinesis involves ________
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Mitosis results in _____________
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The division which brings about vegetative growth.
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The type of cell division that occurs in the apical meristem of plants is ______.
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Somatic cells of a multicellular organism arise from a single cell by mitosis.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Asexual reproduction is accomplished through mitosis.
Why should gametes be produced by meiosis during sexual reproduction?
The main significance of mitosis is that
What type of cell division occurs in the cells of the upper layer of the epidermis, cells of the lining of the gut, and blood cells?
The growth of multicellular organisms is due to
Both unicellular and multicellular organisms undergo mitosis. What are the differences, if any, observed in the process between the two?
