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प्रश्न
Cells which are not dividing are likely to be at ______.
विकल्प
G1
G2
G0
S phase
उत्तर
Cells which are not dividing are likely to be at G0.
Explanation:
These cells that do not divide further exit G the phase to enter an inactive stage is called the quiescent stage (G0) of the cell cycle. G0 stage of cell denotes exit “of cell from the cell cycle. During the G0 stage of cell cycle, the cell decides to undergo differentiation. Cells in the G0 stage remain metabolically active but no longer proliferate unless called on to do so depending on the requirement of the organism.
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संबंधित प्रश्न
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.
Most cytogenic activities occur during
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.
Which tissue of animals and plants exhibits meiosis?
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?
Two key events take place, during S phase in animal cells, DNA replication and duplication of centriole. In which parts of the cell do events occur?
Name the phase of the cell cycle at which the following event occurs:
Centromere splits and chromatids separate.
