This is also known as the first gap period or first growth period. It starts immediately after cell division.
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Cell performs RNA synthesis, protein synthesis and synthesis of membranes during this phase.
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S- phase:
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It is the synthesis phase in which DNA is synthesised or replicated, so that amount of DNA per cell doubles.
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Histone proteins are also synthesised during this phase.
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In animal cells, centriole duplication takes place in this stage.
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G2 phase:
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G2 is the second growth phase, during which the nucleus increases in volume.
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Various proteins necessary for cell division are synthesised during this phase.
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RNA synthesis also occurs during this phase.
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After interphase, the cell enters in dividing phase known as M-phase or mitotic phase which is further divided into karyokinesis and cytokinesis. Karyokinesis is subdivided into stages namely prophase, metaphase, anaphase and telophase. Karyokinesis is the division of nucleus into two daughter nuclei whereas cytokinesis is the division of cytoplasm resulting in two daughter cells.
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\n"},"comment":{"@type":"Comment","text":"Cell cycle represents the preparatory and dividing phases."},"encodingFormat":"text/markdown","learningResourceType":"Practice problem","suggestedAnswer":[],"text":"
With the help of suitable diagram, describe the cell cycle.
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Maharashtra Board Solutions for Chapter: Cell Division, Exercise 10: Exercise
Author:Maharashtra Board
Maharashtra Board Biology Solutions for Exercise - Maharashtra Board Solutions for Chapter: Cell Division, Exercise 10: Exercise
Attempt the free practice questions on Chapter 7: Cell Division, Exercise 10: Exercise with hints and solutions to strengthen your understanding. Biology solutions are prepared by Experienced Embibe Experts.
Questions from Maharashtra Board Solutions for Chapter: Cell Division, Exercise 10: Exercise with Hints & Solutions
While observing a slide, students observed many cells with nuclei. But some of the nuclei were bigger as compared to others but their nuclear membrane was not so clear. Teacher inferred it as one of the phases in the cell division. Which phase may be inferred by the teacher?
Students prepared a slide of the onion root tip. There were many cells seen under a microscope. There was a cell with two groups of chromosomes at opposite ends of the cell. This cell is in which phase of mitosis?