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प्रश्न
उत्तर
Mitosis is important because:
(i) It helps in the growth of tissues, organs and thus the entire organism.
(ii) It helps in the repair of damaged tissues and organs.
(iii) It is the method by which lower organisms reproduce.
(iv) It helps in the maintenance of the hereditary characters by the replication of chromosomes.
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संबंधित प्रश्न
The diagram given below represents a certain stage of mitosis:
- Identify the stage of cell division.
- Name the parts labelled A and B.
- What is the unique feature observed in this stage?
- How many daughter cells are formed from this type of cell division?
The diagram given below represents a stage during cell division.
Study the same and answer the questions that follow:
- Identify whether it is a plant cell or an animal cell. Give a reason in support of your answer.
- Name the stage depicted in the diagram. What is the unique feature observed in this stage?
- Name the type of cell division that occurs during:
- Replacement of old leaves by new ones
- Formation of gametes
- What is the stage that comes before the stage shown in the diagram?
- Draw a neat, labelled diagram of the stage mentioned in (iv) above keeping the chromosome number constant.
The figure below shows a certain stage of mitosis:
(i) Name the stage,
(ii) Label the parts 1 to 4
(iii) How many chromosomes are shown here?
Multiple Choice Question:
The nuclear membrane disappears in
Write the functional activity of the following structure:
Colchicine
Identify the stage of mitosis from the below picture. List the chromosomal events in this stage.
During Mitosis what is the position of chromatids in metaphase?
Name these:
Two steps of the process Mitosis
