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CBSE - Class 11 Biology Cell Cycle and Division Worksheet

1.
Find examples where the four daughter cells from meiosis are equal in size and where they are found unequal in size.
2.
How does cytokinesis in plant cells differ from that in animal cells?
3.
Name the stage of cell cycle at which one of the following events occur:
(i) Chromosomes are moved to spindle equator.
4.
Analyse the events during every stage of cell cycle and notice how the following two parameters change
(ii) amount of DNA content ($C$) per cell
5.
Describe the following:
(c) chiasmata
Draw a diagram to illustrate your answer.
6.
Describe the following:
(b) bivalent
Draw a diagram to illustrate your answer.
7.
Distinguish cytokinesis from karyokinesis.
8.
Discuss with your teacher about
(i) haploid insects and lower plants where cell-division occurs, and
9.
What is the average cell cycle span for a mammalian cell?
10.
What is the significance of meiosis?
11.
List the main differences between mitosis and meiosis.
12.
Distinguish anaphase of mitosis from anaphase I of meiosis.
13.
Name the stage of cell cycle at which one of the following events occur:
(iv) Crossing over between homologous chromosomes takes place.
14.
Name the stage of cell cycle at which one of the following events occur:
(iii) Pairing between homologous chromosomes takes place.
15.
Analyse the events during every stage of cell cycle and notice how the following two parameters change
(i) number of chromosomes ($N$) per cell
16.
Name the stage of cell cycle at which one of the following events occur:
(ii) Centromere splits and chromatids separate.
17.
Why is mitosis called equational division?
18.
Can there be DNA replication without cell division?
19.
What is $G_0$ (quiescent phase) of cell cycle?
20.
Can there be mitosis without DNA replication in ā€˜S’ phase?

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