Question

During G${}_1$ phase, a diploid cell contains the amount of DNA equal to a

• A. Diploid cell
• B. Tetraploid cell
• C. Haploid cell
• D. None of the above

Answer 1

The correct option is A Diploid cell

During G${}_1$ phase, a diploid cell contains the amount of DNA equal to a diploid cell. During G${}_1$ phase, the cell grows in size and synthesizes mRNA and proteins that are required for DNA synthesis. Once the required proteins and growth are complete, the cell enters the next phase of the cell cycle, S phase. G${}_1$ phase is particularly important in the cell cycle because it determines whether a cell commits to the division or to leaving the cell cycle. If a cell is signaled to remain undivided, instead of moving onto the S phase, it will leave the G${}_1$ phase and move into a state of dormancy called the G${}_0$ phase.

So, the correct answer is option B.