CELL CYCLE QUIZ

DNA replication is controlled at which of the following checkpoint?

S

G2

M

G1

TRUE ANSWER : ?
YOUR ANSWER : ?

At the center of the cell cycle control system is Cdk, a protein that

is phosphorylated to become active

manufactures growth factors

binds to different cyclins

is only active during mitosis

TRUE ANSWER : ?
YOUR ANSWER : ?

The phase of mitosis which is associated with the formation of the nuclear envelope, is

metaphase

telophase

prophase

anaphase

TRUE ANSWER : ?
YOUR ANSWER : ?

Which phase of mitosis is associated with chromosomes aligned at the center of the cell and centromeres divide?

interphase

anaphase

metaphase

prophase

TRUE ANSWER : ?
YOUR ANSWER : ?

In prokaryotes, just before the cell divides, the two daughter genomes are attached side by side to the

cell membrane

equatorial plate

centromeres

replication origin

TRUE ANSWER : ?
YOUR ANSWER : ?

In the cell cycle replication of the genome occurs in the

M phase

S phase

G1 phase

G2 phase

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following triggers the division of activated T lymphocytes?

Erythroprotein

FGF

PDGF

Interlukin 2

TRUE ANSWER : ?
YOUR ANSWER : ?

During which phase, a cleavage furrow is formed in animal cells?

M

G1

C

G2

TRUE ANSWER : ?
YOUR ANSWER : ?

A centromere is

All of these

another name for kinetochore

a constriction on a chromosome bound to a disk

the structure to which microtubules attach

TRUE ANSWER : ?
YOUR ANSWER : ?

At which of the following check point, mitosis is controlled?

S

M

G2

G1

TRUE ANSWER : ?
YOUR ANSWER : ?

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