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प्रश्न
Which part of the human body should one use to demonstrate stages in mitosis?
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उत्तर
Any part containing somatic cells can be used to demonstrate stages in mitosis in human beings. Germinal cells of the human body divide by meiosis.
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संबंधित प्रश्न
What is the average cell cycle span for a mammalian cell?
Distinguish cytokinesis from karyokinesis.
Describe the events taking place during interphase.
Name the phase of the cell cycle at which the following event occurs:
Crossing over between homologous chromosomes takes place.
Cells in the quiescent stage (Go)
Match List - I with List - II.
| List I | List II | ||
| (a) | S phase | (i) | Proteins are synthesized |
| (b) | G2 phase | (ii) | Inactive phase |
| (c) | Quiescent stage | (iii) | Interval between mitosis and initiation of DNA replication |
| (d) | G1 phase | (iv) | DNA replication |
Choose the correct answer from the options given below.
Cells which are not dividing are likely to be at ______.
Between a prokaryote and a eukaryote, which cell has a shorter cell division time?
Which of the phases of cell cycle is of longest duration?
Label the diagram and also determine the stage at which this structure is visible.
While examining the mitotic stage in a tissue, one finds some cells with 16 chromosomes and some with 32 chromosomes. What possible reasons could you assign to this difference in chromosome number. Do you think cells with 16 chromosomes could have arisen from cells with 32 chromosomes or vice versa?
Mitosis results in producing two cells which are similar to each other. What would be the consequence if the following irregularities occur during mitosis?
Duplication of DNA does not occur
Comment on the statement – Telophase is reverse of prophase.
Name the phase of the cell cycle at which the following event occurs:
Chromosomes are moved to spindle equator.
Name the phase of the cell cycle at which the following event occurs:
Centromere splits and chromatids separate.
Name the phase of the cell cycle at which the following event occurs:
Pairing between homologous chromosomes takes place.
Match List I with List II:
| List I | List II |
| A. M Phase | I. Proteins are synthesised |
| B. G Phase | II. Inactive phase |
| C. Quiescent stage | III. Interval between mitosis and initiation of DNA replication |
| D. G, Phase | IV. Equational division |
Choose the correct answer from the options given below:
