NEET BIOLOGY

Detailed explanation-1: -After M phase, some cells do not divide further and exist G1 phase to enter an inactive stage called quiescent stages (G0) of the cell cycle. Cells in G0 stage remain metabolically active but no longer proliferate unless called on to do so depending on the requirement of the organism.

Detailed explanation-2: -The phase in which cell fail to divide further (do not enter S-phase after G1-phase) and undergo differentiation is known as G0 phase or quiescent stage.

Detailed explanation-3: -The cells which do not divide by mitosis are differentiated cells and sex cells. These differentiated cells embody neurons, muscle cells, skin cells, and most blood cells, B-cells, T-cells, and red blood cells.

Detailed explanation-4: -Cells usually exit the cell cycle in order to differentiate into the distinct cell types of an organism, such as neurons, muscle or fat (Sun and Buttitta, 2017).

Detailed explanation-5: -Neurons cannot divide because they lack centrioles. Each nerve cell has a specific place in our nervous system.