M-Phase

Question 1

which is the most dramatic period of cell cycle

Answer 1

m-phase

Question 2

m-phase is also called _______ since chromosomes in parent and progeny cells is the same

Answer 2

equational division

Question 3

four stages of mitosis

Answer 3

prophase
metaphase
anaphase
telophase
cytokinesis

Question 4

in which phase of mitosis do chromatin condense and form chromosomes

Answer 4

prophase

Question 5

in which phase do centrioles move toward the opposite poles

Answer 5

prophase

Question 6

in which phase does the initiation of assembly of mitotic spindle, microtubules and proteinaceous components begin

Answer 6

prophase

Question 7

which parts of the cell can’t be seen with a microscope at the end of prophase

Answer 7

golgi complex
endoplasmic reticulum
nucleolus
nuclear envelope

Question 8

prophase is marked by

Answer 8

initiation of condensation of chromosomal material

Question 9

metaphase is marked by

Answer 9

complete disintegration of nuclear envelope

Question 10

in which phase is morphology of chromosomes studied easily and why

Answer 10

metaphase
condensation of chromosomes is complete and they can be observed under a microscope

Question 11

small disc-shaped structures at the surface of centromeres of chromosomes are called

Answer 11

kinetochores

Question 12

kinetochores serve as site of attachment of ________ to ________

Answer 12

spindle fibres
chromosomes

Question 13

the plane of alignment of the chromosomes at metaphase is referred to as the

Answer 13

metaphase plate

Question 14

in which phase are chromosomes moved to spindle equator and get aligned along metaphase plate through spindle fibres to both poles

Answer 14

metaphase

Question 15

anaphase is marked by

Answer 15

centromere of each chromosome is split towards the poles

Question 16

the two daughter chromatids of the chromosomes being split in anaphase, after splitting are called

Answer 16

chromosomes of the future daughter nuclei

Question 17

telophase is marked by

Answer 17

chromosomes reaching their respective poles

Question 18

in which phase do chromosomes decondense

Answer 18

telophase

Question 19

in which phase do chromosomes lose their individuality

Answer 19

telophase

Question 20

can you properly see chromosomes in telophase? how do they appear?

Answer 20

no
chromatin material tends to collect in a mass in the two poles

Question 21

in which phase does nuclear envelope assemble around the chromosomal clusters

Answer 21

telophase

Question 22

nucleolus, golgi complex and er reform in which phase

Answer 22

telophase

Question 23

how does cytokinesis occur in animal cells

Answer 23

appearance of a furrow in plasma membrane

Question 24

how does cytokinesis occur in plant cells

Answer 24

cell-plate in centre of cells growing towards the lateral walls

Question 25

what does the cell-plate represent

Answer 25

middle lamella between two adjacent cells

Question 26

in some organisms karyokinesis is not followed by cytokinesis as a result of which what happens

Answer 26

multinucleate condition arises leading to the formation of syncytium

Question 27

example of syncytium condition

Answer 27

liquid endosperm in coconut