NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The phase of mitosis where the nuclear membrane formsis called ____ .
A
anaphase
B
prophase
C
metaphase
D
telophase
Explanation: 

Detailed explanation-1: -During telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm. The chromosomes begin to uncoil, which makes them diffuse and less compact.

Detailed explanation-2: -Mitosis ends with telophase, or the stage at which the chromosomes reach the poles. The nuclear membrane then reforms, and the chromosomes begin to decondense into their interphase conformations. Telophase is followed by cytokinesis, or the division of the cytoplasm into two daughter cells.

Detailed explanation-3: -telophase. [ tĕl′ə-fāz′ ] The final phase of cell division, in which membranes form around the two groups of chromosomes, each at opposite ends of the cell, to produce the two nuclei of the daughter cells. The spindle disappears, and the cytoplasm usually divides (in the process called cytokinesis).

Detailed explanation-4: -During telophase, two distinct nuclear membranes develop encompassing the two identical sets of chromosomes. At the same time, the cytoplasm divides between the two new cells, and the cell membrane begins to pinch off the cell contents into two daughter cells.

Detailed explanation-5: -What Happens during Telophase? During telophase, the chromosomes arrive at the cell poles, the mitotic spindle disassembles, and the vesicles that contain fragments of the original nuclear membrane assemble around the two sets of chromosomes. Phosphatases then dephosphorylate the lamins at each end of the cell.

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