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प्रश्न
Write briefly the significance of mitosis and meiosis in multicellular organism.
उत्तर
Significance of Mitosis:
- Mitosis facilitates the development of a single-cell zygote into a full-grown organism
- It facilitates the repair of worn-out or damaged tissues.
- It facilitates vegetative propagation in flowering plants.
- It facilitates regeneration in some animals; like Planaria.
Significance of Meiosis:
- Meiosis ensures that the number of chromosomes becomes diploid in gametes. This helps in ensuring the conservation of specific chromosomal numbers in each species.
- Meiosis facilitates genetic variability in populations and this is because of crossing over events that occur during prophase–I.
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संबंधित प्रश्न
The exchange of chromatid parts between the maternal and the paternal chromatids of a pair of homologous chromosomes during meiosis.
Given below is a diagram representing a stage during the mitotic cell division. Study thediagram and answer the following questions:
Is it a plant or an animal cell? Give a reason to support your answer.
Choose the correct answer:
Somatic cells divide by
Choose the correct answer:
Somatic cells divide by ___________
Choose the correct answer:
Cytokinesis involves ________
Choose the correct answer:
Mitosis results in _____________
Given below is a diagram representing a stage during mitotic cell division. Study it carefully and answer the question that follow.
How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?
What is cytokinesis?
Give Technical Terms
The division which brings about vegetative growth.
The growth of multicellular organisms is due to
