Question

During G1 phase of cell cycle, cell increases

• A. supply of oxygen
• B. supply of carbon dioxide
• C. supply of water
• D. supply of proteins

Answer 1

The correct option is D supply of proteins

G₁ phase together with the S phase and G₂ phase comprise the long growth period of the cell cycle called interphase that takes place before cell division in mitosis (M phase).
During G₁ phase, the cell grows in size and synthesizes mRNA and proteins (Known as histones) that are required for DNA synthesis.