NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which is not a phase of mitosis?
A
prophase
B
metaphase
C
anaphase
D
cytokinesis
Explanation: 

Detailed explanation-1: -Interphase is not a phase of mitosis.

Detailed explanation-2: -Cytokinesis is the final physical cell division that follows telophase, and is therefore sometimes considered a sixth phase of mitosis. All phases of mitosis, as well as the flanking periods of interphase and cytokinesis before and after, are shown in Figure 8.

Detailed explanation-3: -Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase).

Detailed explanation-4: -Thus, cytokinesis can be considered to occur in four stages-initiation, contraction, membrane insertion, and completion. The central problem for a cell undergoing cytokinesis is to ensure that it occurs at the right time and in the right place.

Detailed explanation-5: -Cytokinesis is that phase in the cell cycle wherein other cellular components are separated resulting in the production of two daughter cells from the original (parent) cell. In animal cells (and in some plant cells) it is marked by a constriction of the cell membrane called the cleavage furrow.

There is 1 question to complete.