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Question
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.
Solution
- Animals cell. Because it lacks a cell wall.
- Metaphase. Chromosomes lined up in one plane at the equator.
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- Mitotic cell division
- Meiosis (Reductional) cell division
- Prophase comes before metaphase.
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RELATED QUESTIONS
Fill in the blank and explain the statement.
All chromosomes are arranged parallel to equatorial plane of cell in ______ phase of mitosis.
Define the following:
Karyokinesis
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.
Choose the correct answer:
Which division takes most time?
Differentiate between Centrosome and centromere.
Give Technical Terms
The stage in mitosis when the nucleolus starts disappearing.
In which stage of mitosis the chromosomes align in an equatorial plate? How?
Give the sequence of the events occurring during the prophase of mitosis.
During Mitosis what is the position of chromatids in the anaphase?