Class 11 Biology NCERT Solutions For Chapter 10 Cell Cycle and Cell Division

Download NCERT Solutions for Class 11 Biology

Chapter 10 Cell Cycle and Cell Division

(Link of Pdf File is given below at the end of the Questions list)

In this pdf file you can see answers of following Questions

Question 1:
What is the average cell cycle span for a mammalian cell?
Question 2:
Distinguish cytokinesis from karyokinesis.
Question 3:
Describe the events taking place during interphase.
Question 4:
What is G (quiescent phase) of cell cycle?

Question 5:
Why is mitosis called equational division?

Question 6:
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
Question 7:
Describe the following:

(a) synapsis (b) bivalent (c) chiasmata
Draw a diagram to illustrate your answer.

Question 8:
How does cytokinesis in plant cells differ from that in animal cells?
Question 9:
Find examples where the four daughter cells from meiosis are equal in size and where they are found unequal in size.
(a) Spermatogenesis or the formation of sperms in human beings occurs by the process of meiosis. It results in the formation of four equal-sized daughter cells.
(b) Oogenesis or the formation of ovum in human beings occurs by the process of meiosis. It results in the formation of four daughter cells which are unequal in size.

Question 10:
Distinguish anaphase of mitosis from anaphase I of meiosis.
Question 11:
List the main differences between mitosis and meiosis.

Question 12:

What is the significance of meiosis?
Question 13:
Discuss with your teacher about
(i) haploid insects and lower plants where cell-division occurs, and
(ii) some haploid cells in higher plants where cell-division does not occur.
Question 14:

Can there be mitosis without DNA replication in S phase?

Question 15:
Can there be DNA replication without cell division?
Question 16:
Analyse the events during every stage of cell cycle and notice how the following two parameters change
(i) Number of chromosomes (N) per cell
(ii) Amount of DNA content (C) per cell

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