G1 PHASE

Question 1

What are the other name of G1 phase ?

Answer 1

It is also known as first growth phase \ pre synthetic phase \ post mitotic phase \ gap phase

Question 2

What is G1 phase ?

Answer 2

It is the phase between the mitosis of the previous cell cycle and the replication of the next cell cycle (S phase)

It is the largest phase of the cell cycle

Question 3

What happens to the cell in G1 phase ?

Answer 3

The cell is metabolically active and grows continuously but the nucleus grows up to a limit.

Question 4

Synthesis of which materials takes place ?

Answer 4

Synthesis of RNA , proteins , nucleotide and enzyme like DNA polymerase and RNA polymerase.

Duplication of most of the cell organelles takes place.

Question 5

What is the duration of theG1 phase in the frequently and not frequently dividing cell ?

Answer 5

The duration of the cell cycle vary
in frequently dividing cell - shorter G1 phase
in not frequently dividing phase - longer G1 phase

Question 6

Which phase decide the fate of the cell ?

Answer 6

G1 phase decide the fate of the cell

Question 7

What is the dividing , non dividing and the later on dividing cells known as ?

Answer 7

Dividing cell - undifferentiated
Non dividing cell - differentiated
Cell will divide later on - de differentiated

Question 8

Which cells in adult humans do not divide ?

Answer 8

Nerve cell

Question 9

Which cell are kept in Go phase ?

Answer 9

Some cells which do not divide or divide occasionally just to replace dead or old cells are kept in the Go phase

Question 10

What happens to the cells in Go phase ?

Answer 10

In the Go phase cells are metabolically active but do not proliferate unless they are called to do so .

Cells are in suspended phase in Go phase