Question

What comes in the quiescent stage of interphase?
A. G1
B. S
C. G2
D. G0

Answer 1

Hint: Cells remain metabolically active at this stage but do not undergo division unless they are required to do so depending on the organism's requirement.

Complete answer:
The eukaryotic cell cycle can be divided into interphase and the M phase. The interphase constitutes the longest stage in the cell cycle. It is further divided into G1, S and G2 phases.

G1 phase refers to the time between the mitotic stage and the initiation of DNA replication. The cell is metabolically active during this phase and grows continually but DNA replication does not occur.

S or synthesis Phase is the stage where the synthesis or replication of DNA occurs. The number of DNA per cell doubled during this period. The number of chromosomes however does not increase. In the G2 phase, the synthesis of proteins takes place in preparation for mitosis, while the growth of cells continues.

Some adult animal cells do not seem to exhibit division while many other cells occasionally undergo division to replace cells lost due to injury or cell death. These cells that do not undergo further division exit the G1 phase to enter an inactive stage of the cell cycle called the quiescent or G0 stage.

Thus, the correct answer is G0.

Note: Meiosis includes pairing of homologous chromosomes and recombination between the homologous non-sister chromatids. Meiosis II is the stage where four haploid cells are produced.