Question

Identify the correct statement with regard to G_{​​​​​​1} phase (Gap 1) of interphase :

(1) DNA synthesis or replication takes place.

(2) Reorganisation of all cell components takes place.

(3) Cell is metabolically active, grows but does not replicate its DNA.

(4) Nuclear Division takes place.

Answer 1

Ans : (3) Cell is metabolically active, grows but it does not replicate its DNA.

Explanation :

The G₁ phase of interphase includes synthesis of various proteins, duplication of organelles, synthesis of various enzymes etc as a preparation for the synthesis phase and cell division. Therefore, it is metabolically very active but DNA replication does not take place in this phase, it occurs in the S phase of interphase.