AP BIOLOGY

CELL DIVISION

THE CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The final phase following anaphase of cell divisions, and highlighted by the complete separation of the chromosomes. What phase am I?
A
Cytokinesis
B
Telophase
C
G1 Phase
D
S Phase
Explanation: 

Detailed explanation-1: -During anaphase the centromeres divide and the chromatids start moving towards the two opposite poles. Once the chromatids reach the two poles, the chromosomal elongation starts, nucleolus and the nuclear membrane reappear. This stage is called the telophase.

Detailed explanation-2: -Telophase and Cytokinesis 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: -Anaphase II: During anaphase II, the centromere splits, freeing the sister chromatids from each other. At this point, spindle fibers begin to shorten, pulling the newly-separated sister chromatids towards opposite ends of the cell.

Detailed explanation-4: -Cytokinesis is the final stage of cell division in eukaryotes as well as prokaryotes. During cytokinesis, the cytoplasm splits in two and the cell divides.

Detailed explanation-5: -In the final phase, telophase, membranes form around the two new groups of chromosomes, and the mitotic spindles that provided the power to create these groups are disassembled. Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane.

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