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प्रश्न
Why is cell division necessary?
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उत्तर
Cell division is important for a variety of reasons. One reason is that cell division is important for the growth of an organism. It is also important for cells to divide so that they can remain efficient. As all the cells are produced by the division of pre-existing cells, so each organism needs new cells for growth, replacement, repair and reproduction.
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संबंधित प्रश्न
Shown below are four stages (A, B, C, D) (not in sequence) of a certain kind of cell division.
- Is it a plant cell or an animal cell? Give two reasons.
- Is it undergoing mitosis or meiosis?
- What should be the correct sequence of these four stages among themselves?
- Name the stage that should precede the earliest of these stages.
- Draw the stage names above inside the blank space provided.
Differentiate between cytokinesis and karyokinesis.
Name the organelles which show the analogy written as under
Control room of the cell——
______ is seen in unicellular animals.
During meiosis in pachytene, stages the paired chromosomes are called ______.
Genetic variations occur in meiosis because of ______.
Nuclear membrane disappears completely in the phase called ______ of karyokinesis.
Give scientific reason.
Cell division is one of the important properties of cells and organisms.
Define the following term:
Aster
