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NCERT solutions Biology Textbook for Class 11 chapter 10 Cell Cycle and Cell Division

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Chapter 10 - Cell Cycle and Cell Division

Pages 171 - 172

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

Q 1 | Page 171 | view solution

 Distinguish cytokinesis from karyokinesis.

Q 2 | Page 171 | view solution

Describe the events taking place during interphase.

Q 3 | Page 171 | view solution

What is G0 (quiescent phase) of cell cycle?

Q 4 | Page 171 | view solution

Why is mitosis called equational division?

Q 5 | Page 172 | view solution

Name the stage of cell cycle at which one of the following events occur:

(i) Chromosomes are moved to spindle equator

(ii) Centromere splits and chromatids separate

(iii) Pairing between homologous chromosomes takes place

(iv) Crossing over between homologous chromosomes takes place

Q 6 | Page 172 | view solution

Describe Synapsis and Draw a diagram to illustrate your answer.

Q 7.1 | Page 172 | view solution

Describe bivalent  and Draw a diagram to illustrate your answer.

Q 7.2 | Page 172 | view solution

Describe Chiasmata and Draw a diagram to illustrate your answer.

Q 7.3 | Page 172 | view solution

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

Q 8 | Page 172 | view solution

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

Q 9 | Page 172 | view solution

Distinguish anaphase of mitosis from anaphase I of meiosis

Q 10 | Page 172 | view solution

List the main differences between mitosis and meiosis

Q 11 | Page 172 | view solution

What is the significance of meiosis?

Q 12 | Page 172 | view solution

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

Q 13.1 | Page 172 | view solution

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

Q 13.2 | Page 172 | view solution

Can there be mitosis without DNA replication in S phase?

Q 14 | Page 172 | view solution

Can there be DNA replication without cell division?

Q 15 | Page 172 | view solution

Analyse the events during every stage of ceil cycle and notice how the following two parameters change.

(i) number of chromosomes (N) per cell

(ii) amount of DNA content (C) per cell

Q 16 | Page 172 | view solution

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