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प्रश्न
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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
Fill in the blank and explain the statement.
All chromosomes are arranged parallel to equatorial plane of cell in ______ phase of mitosis.
Fill in the blank and explain the statement.
For formation of plasma membrane, ____________ molecules are necessary.
Describe anaphase in mitosis.
Define the following:
Karyokinesis
Fill in the blank:
______ is the indirect cell division.
The fig given alongside shows a certain stage in a cell division in a cell with four chromosomes.
(i) Name the parts of the chromosome labeled A and B.
(ii) Name the structure C. what is its function?
(iii) Name the type of division . Give a reason.
(iv) Name the stage of division.
(v) Name the stages before and after the stage shown in diagram.
Name the following:
Replacement of dead cells is accomplished by which process.
Name the Following
The stage when chromosomes arrange at the equator.
Give Technical Terms
The stage in mitosis when the nucleolus starts disappearing.
Give Technical Terms
The stage at which spindle fibres begin to be formed.
Give Technical Terms
Division of nucleus.
Complete the following sentence with appropriate word :
______means the splitting of the nucleus.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
The alkaloid colchicine inhibits the formation of the mitotic spindle.
Choose the Odd One Out
Write the functional activity of the following structure:
Colchicine
Explain the following figure.
