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प्रश्न
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उत्तर
During prophase of mitosis, the chromatin fibres shorten and become thick to form chromosomes.
During metaphase, the chromosomes appear more distinct and clear and each consists of two parallel strands called chromatids joined by a centromere.
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संबंधित प्रश्न
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.
Fill in the blank and explain the statement.
For formation of plasma membrane, ____________ molecules are necessary.
Describe anaphase in mitosis.
Fill in the blank:
______ is the indirect cell division.
The diagram given alongside represents a stage in cell division.
Study the same and answer the questions that follow:
(i) Identify the stage of cell division.
(ii) Name the parts labeled A,B,C and D.
(iii) What is the unique feature observed in this stage?
(iv) Where does this type of cell division usually occur?
(v) How many daughter cells are formed from this type of cell division?
(vi) Is the dividing cell shown a plant or an animal cell?
Give a reason to support your answer.
Choose the correct answer:
Which division takes most time?
Choose the correct answer:
Nuclear membrane reappears in ____________
In which one of the following options the two stages of mitosis have been given in correct sequence?
Draw a well-labelled diagram to show the anaphase stage of mitosis in plant cells having four chromosomes.
Explain the Term Pachytene
Explain the Term Cell Diakinesis
Name the following:
Mitosis takes place in which cells.
Name the following:
The kind of division normally seen at the tip of the root and shoot system.
Complete the following sentence with appropriate word :
______means the splitting of the nucleus.
Choose the Odd One Out
Multiple Choice Question:
Karyokinesis is the division of
Multiple Choice Question:
The nuclear membrane disappears in
The phase of karyokinesis which is almost the reverse of prophase is ______.
What is the main function of the spindle fibres during mitosis?
