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CBSE - Class 11 Biology Cell Cycle and Division Worksheet

Analyse the events during every stage of cell cycle and notice how the following two parameters change
(i) number of chromosomes ($N$) per cell

Name the stage of cell cycle at which one of the following events occur:
(i) Chromosomes are moved to spindle equator.

How does cytokinesis in plant cells differ from that in animal cells?

Discuss with your teacher about
(i) haploid insects and lower plants where cell-division occurs, and

Describe the following:
(c) chiasmata
Draw a diagram to illustrate your answer.

What is the average cell cycle span for a mammalian cell?

Describe the following:
(b) bivalent
Draw a diagram to illustrate your answer.

Describe the following:
(a) synapsis
Draw a diagram to illustrate your answer.

What is the significance of meiosis?

10.

Can there be DNA replication without cell division?

11.

List the main differences between mitosis and meiosis.

12.

Can there be mitosis without DNA replication in ‘S’ phase?

13.

Discuss with your teacher about
(ii) some haploid cells in higher plants where cell-division does not occur.

14.

Distinguish anaphase of mitosis from anaphase I of meiosis.

15.

Find examples where the four daughter cells from meiosis are equal in size and where they are found unequal in size.

16.

Describe the events taking place during interphase.

17.

Distinguish cytokinesis from karyokinesis.

18.

What is $G_0$ (quiescent phase) of cell cycle?

19.

Name the stage of cell cycle at which one of the following events occur:
(iv) Crossing over between homologous chromosomes takes place.

20.

Why is mitosis called equational division?

Worksheet Answers

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