Match column I with column I I and select the correct option from the given codes. Column I Column II (a) Disintegration of nuclear membrane (i) Anaphase (b) Appearance of nucleolus (ii) Prophase (c) Division of centromere (iii) Telophase (d) Replication of D N A (iv) S -Phase

a - ( i i ) , b - ( i i i ) , c - ( i ) , d - ( i v )

a - ( i i ) , b - ( i i i ) , c - ( i v ) , d - ( i )

a - ( i i i ) , b - ( i i ) , c - ( i ) , d - ( i v )

a - ( i i i ) , b - ( i i ) , c - ( i v ) , d - ( i )

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At which of the given stages of mitosis, chromosomes appear in $V, L, J$ and $I$ shapes.

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Important Questions on Cell Cycle and Cell Division

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IMPORTANT

MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 44

Read the given statements which represent the features of the figures

A, B, C

and

D

. Match them correctly and select the correct option.
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(i) Chromosomes appear like a ball of wool (spireme stage)
(ii) Reformation of nuclear envelope, nucleolus, Golgi complex and

E R

(iii) Formation of equatorial plate
(iv) Splitting of centromeres

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 45

Match column

I

with column

I I

and select the correct option from the given codes.

	Column I		Column II
(a)	Disintegration of nuclear membrane	(i)	Anaphase
(b)	Appearance of nucleolus	(ii)	Prophase
(c)	Division of centromere	(iii)	Telophase
(d)	Replication of $D N A$	(iv)	$S$ -Phase

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 46

Which phase of mitosis is essentially the reverse of prophase in terms of nuclear changes?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 47

The given graph shows the change in

D N A

content during various phases (

A

D

) in a typical mitotic cell cycle. Identify the phases and select the correct option.
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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 48

A cell's division time is

1

minute. In

20

minutes, a culture tube (culture medium) is

1 / 8^{t h}

filled with cells. When the tube will be fully filled?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 49

Cytokinesis in an animal cell takes place by ________ method in ________ direction; while in a plant cell it occurs by _________ method in _________ direction.

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 50

If a tissue has at a given time

1024

cells, how many cycles of mitosis had the original parental single cell undergone?

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MTG OBJECTIVE NCERT AT YOUR FINGERTIPS BIOLOGY CLASS XI + XII>Chapter 10 - Cell Cycle and Cell Division>MCQS CORNER>Q 51

Spindle usually persists in the form of _______ during _______ method of cytokinesis.

At which of the given stages of mitosis, chromosomes appear in V, L, J and I shapes.

Important Questions on Cell Cycle and Cell Division

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At which of the given stages of mitosis, chromosomes appear in $V, L, J$ and $I$ shapes.