Biology : Cell Cycle and Cell Division

Cells in G₀ phase :

• enter the cell cycle

• suspend the cell cycle

• terminate the cell cycle

• exit the cell cycle

Which of the following phases correspond to the interval between mitosis and initiation of DNA replication?

• S phase

• G₁ phase

• G₂ phase

• M phase

• M phase

Which of these is not a key feature of meiosis?

• Meiosis involves two sequential cycles of nuclear and cell division 

• Meiosis involves pairing of homologous chromosomes

• Two cycles of DNA replication occur during meiosis

• Three is recombination between the paired homologous chromosomes

• Three is recombination between the paired homologous chromosomes

The correct sequence of phases of cell cycle is

• G₁ → G₂ → S → M

• S → G₁ → G₂ → M

• G₁ → S → G₂ → M

• M → G₁ → G₂ → S