Question

DNA duplication occur in

• A. G2 Phase
• B. S Phase
• C. G0 Phase
• D. G1 Phase

Answer 1

The correct option is B S Phase

There are 4 phases of the cell cycle, namely G1​ phase, S phase, G2​ phase and M phase. During G1​ phase or gap 1 phase, the cell increases in size. Also, various proteins are synthesized in this phase. During S phase or synthesis phase, the DNA replication or duplication takes place. During G2​ phase, cell continues to grow until it enters the M phase or mitosis phase. Cell division takes place in M phase.
Thus, the correct answer is 'S'.