Frank solutions for Biology [English] Class 10 ICSE chapter 1 - Cell Division [Latest edition]

Why is cell division necessary?

What do you understand by cell cycle?

Describe anaphase in mitosis.

Define the following:

Karyokinesis

Define the following:

Cytokinesis

Define the following:
Chiasmata

How many daughter cells would you expect if 4 cells undergo
(i) Mitosis
(ii) Meiosis
(iii) Amitosis

Fill in the blank:

______ takes place in body cells resulting in growth and development.

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The energy for cell division is stored as ______.

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Both ______ and heterotypic divisions occur in meiosis.

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Meiotic division is also called ______ division.

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______ 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.

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.

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Which division takes most time?

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Somatic cells divide by

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Cytokinesis involves

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In meiosis, chromosome number is reduced by

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Mitosis results in

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Centromere is related to ________

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Crossing over is a feature of _______________

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DNA replication takes place in _____________

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In an interphase cell chromosome are as _____________

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During mitosis which of the following disintegrate _________

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Chromosomes appear at equator in ____________

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Chromosomes number is halved in _____________

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If after karyokinesis, cytokinesis does not occur, then result would be ___________

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Gametes are formed by ________________

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Minimum coiling in chromosome is at ______________

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Chromosome is most coiled at (in mitosis) ____________

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Nuclear membrane reappears in _________________

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Which division takes most time?

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Somatic cells divide by ___________

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Cytokinesis involves ________

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In meiosis, chromosome number is reduced by ______________

Choose the correct answer:
Mitosis results in _____________

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Centromere is related to _______________

Choose the correct answer:
Crossing over is a feature of ______________

Choose the correct answer:
DNA replication takes place in ______________

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In an interphase cell chromosome are as _____________

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During mitosis which of the following disintegrate ___________

Choose the correct answer:
Chromosomes appear at equator in _____________

Choose the correct answer:
Chromosomes number is halved in ____________

Choose the correct answer:
If after karyokinesis, cytokinesis does not occur, then result would be _____________

Choose the correct answer:
Gametes are formed by _____________

Choose the correct answer:
Minimum coiling in chromosome is at ________________

Choose the correct answer:
Chromosome is most coiled at (in mitosis) ________________

Choose the correct answer:
Nuclear membrane reappears in ____________