Question

Choose the correct answers from the alternatives given :
Interphase is the part of the cell cycle when

• A. mitosis proceeds
• B. a cell grows and duplicates its DNA
• C. a germ cell forms its spindle apparatus
• D. a cell ceases to function

Answer 1

The correct option is B a cell grows and duplicates its DNA

• A cell cycle is divided into 2 phases the M phase and the interphase.
• The M phase is where the division of the cell takes place is mitosis or meiosis.
• The interphase is divided into G1, S and G2 phase.
• Gi and G2 are the gap 1 and gap 2 part of the interphase which occure before the S phase and after the S phase respectively.
• During the S phase replication of the DNA takes place where the genetic material of the cell is doubled after which the cell rests and then it enters the M phase.
• G1 phase takes place before the S phase where the cells is in the period where it can grow and perform its functions.
• Therefore it can be said that the interphase is over all a phase of the cell cycle where the cell is allowed to grow and rest before and after it enters the cell division.
• Therefore the answer option 'a cell grows and duplicates its DNA' is correct.