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प्रश्न
All chromosomes are arranged parallel to equatorial plane of cell in ______ phase of mitosis.
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उत्तर
All chromosomes are arranged parallel to equatorial plane of cell in metaphase phase of mitosis.
Explanation:
During metaphase, the nuclear membrane completely disappears. Chromosomes complete condensation and become clearly visible along with sister chromatids. The chromosomes are arranged parallel to the equatorial plane of the cell. Spindle fibres are formed between the centromere of each chromosome and both centrioles.
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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.
With the help of suitable diagrams, explain the five stages of prophase-I of meiosis.
In which one of the following options the two stages of mitosis have been given in correct sequence?
The diagram below represents a certain stage of a cell.
(i) Is it an animal cell or a plant cell ? Give one reason in support of your answer.
(ii) Label the parts numbered 1 – 3.
(iii) Which stage (phase) of mitosis is represented in this diagram
Draw a well-labelled diagram to show the anaphase stage of mitosis in plant cells having four chromosomes.
Name the following:
Mitosis takes place in which cells.
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 :
Colchicine arrests cell division at __________.
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
Multiple Choice Question:
The nuclear membrane disappears in
Explain the following figure.
Name these:
Two steps of the process Mitosis
Match List - I with List - II.
| List - I | List - II |
| A. Centromere | I. Mitochondrion |
| B. Cilium | II. Cell division |
| C. Cristae | III. Сell movement |
| D. Cell membrane | IV. Phospholipid Bilayer |
Choose the correct answer from the options given below:
What is the main function of the spindle fibres during mitosis?
