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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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- All the three
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Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.
Is it a plant cell or an animal cell? Give a reason to support your answer.
Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the questions that follow.
Identify the stage shown.
Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.
Name the stage that follows the one shown here. How is that stage identified?
Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.
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Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.
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The mitosis is called equational division.
Differentiate between
Centrifugal cytokinesis and Centripetal cytokinesis.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
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.
The growth of multicellular organisms is due to
Write briefly the significance of mitosis and meiosis in multicellular organism.
The basis of genetic variation in the living organisms during mitosis occurs due to ______.
