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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. |
संबंधित प्रश्न
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
Choose the correct answer:
During mitosis which of the following disintegrate _________
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.
How will you differentiate between mitosis and meiosis on the basis of the chromosome number in the daughter cells?
Explain the significance of mitosis.
Why should gametes be produced by meiosis during sexual reproduction?
The main significance of mitosis is that
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?
