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प्रश्न
Differentiate between
Centrifugal cytokinesis and Centripetal cytokinesis.
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उत्तर
| Centrifugal cytokinesis | Centripetal cytokinesis |
| During the partition of the cytoplasm following karyokinesis, when the cell plate formation begins in the centre and proceeds towards outwards, the division is said to be centrifugal. | When the cell membrane starts constricting from the sides and proceeds inwards, till the mother cell is divided into two daughter cells, the division is known as centripetal cytokinesis. |
| All plant cells follow centrifugal cytokinesis by cell plate formation. | All animal cells follow centripetal cytokinesis through cell furrow formation. |
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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 are three diagrammatic sketches (A, B and C) of one and the same particular phase during mitotic type of cell division.
- Identify the phase.
- What is the diploid number of chromosomes shown in them?
- Identify whether these are animal cells or plant cells? Give reasons.
- Which of these is/are shown in the correct direction?
- Only A
- Only B
- Only A and C
- All the three
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.
Given below is a diagram representing a stage during the mitotic cell division. Study thediagram and answer the following questions:
Draw a neat, labelled diagram of the stage which follows the one shown in the diagram.
Given below is a diagram representing a stage during the mitotic cell division. Study [5] thediagram and answer the following questions:
Name of the nitrogenous bases.
Choose the correct answer:
Somatic cells divide by ___________
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?
Give Reasons for the following
The mitosis is called equational division.
Write briefly the significance of mitosis and meiosis in multicellular organism.
