NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
After mitosis and cytokineses, one cell becomes ____
A
Two identical cells
B
Two genetically different cells
C
Four identical cells
D
Four genetically different cells
Explanation: 

Detailed explanation-1: -Mitosis is nuclear division during which duplicated chromosomes are segregated and distributed into daughter nuclei. Usually the cell will divide after mitosis in a process called cytokinesis in which the cytoplasm is divided and two daughter cells are formed.

Detailed explanation-2: -The cell then splits to form two genetically identical daughter cells, in a process known as cytokinesis. The end of cytokinesis denotes the end of telophase.

Detailed explanation-3: -Mitosis is a fundamental process for life. During mitosis, a cell duplicates all of its contents, including its chromosomes, and splits to form two identical daughter cells. Because this process is so critical, the steps of mitosis are carefully controlled by certain genes.

Detailed explanation-4: -When cytokinesis finishes, we end up with two new cells, each with a complete set of chromosomes identical to those of the mother cell. The daughter cells can now begin their own cellular “lives, ” and – depending on what they decide to be when they grow up – may undergo mitosis themselves, repeating the cycle.

Detailed explanation-5: -Mitosis and cytokinesis produce two genetically identical daughter cells. Each continuous, double-stranded DNA molecule makes one chromosome. DNA wraps at regular intervals around pro-teins called histones, forming chromatin. Interactions between parts of the histones further compact the DNA.

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