Question

The correct sequence of phases of cell cycle is.
(1) M → G₁ → G₂ → S
(2) G₁ → G₂ → S → M
(3) S → G₁ → G₂ → M
(4) G₁ → S → G₂ → M

Answer 1

The correct sequence of phases of cell cycle is option 4

#The first subphase of the cell cycle is GAP 1

•In this phase, the cell grows in size abd volume

# The next phase is S or synthesis phase

•In this phase, replication of DNA takes place

# The next phase is GAP 2

•In this phase also, the cell continues to grow and produces new proteins

# Next comes the M or mitotic phase

•Mitosis takes place in this phase.

Answer 2

The correct option is 4.

• Cell cycle consists of 4 phases-

1. G 1 or Gap 1 phase where the cells start growing for first time
2. S or synthesis phase where DNA synthesis takes place.
3. G 2 or Gap 2 phase where cell start its final growing before dividing
4. M or mitotic phase where cells divide and daughter cells are formed from the parent cells.