NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which part of mitosis does this happen? A nuclear membrane forms around each group of chromosomes.
A
telophase
B
metaphase
C
prophase
D
anaphase
Explanation: 

Detailed explanation-1: -Finally, during telophase, a nuclear membrane forms around each set of chromosomes to separate the nuclear DNA from the cytoplasm.

Detailed explanation-2: -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.

Detailed explanation-3: -Answer and Explanation: During prophase in mitosis is when the nuclear envelope and nucleoli dissolve. Mitosis has several phases and the first phase is called prophase.

Detailed explanation-4: -Cytokinesis performs an essential process to separate the cell in half and ensure that one nucleus ends up in each daughter cell. Cytokinesis starts during the nuclear division phase called anaphase and continues through telophase.

Detailed explanation-5: -In telophase II, nuclear membranes form around each set of chromosomes, and the chromosomes decondense. Cytokinesis splits the chromosome sets into new cells, forming the final products of meiosis: four haploid cells in which each chromosome has just one chromatid.

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