AP BIOLOGY

LABORATORY REVIEW

MITOSIS AND MEIOSIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
In which part of the cell cycle do two new nuclei form?
A
Interphase
B
Mitosis
C
cytokinesis
D
Synthesis
Explanation: 

Detailed explanation-1: -During telophase, the newly separated chromosomes reach the mitotic spindle and a nuclear membrane forms around each set of chromosomes, thus creating two separate nuclei inside the same cell. As Figure 4 illustrates, the cytoplasm then divides to produce two identical cells.

Detailed explanation-2: -During the completion of mitosis (telophase), two new nuclei form around the separated sets of daughter chromosomes (see Figure 8.29).

Detailed explanation-3: -Telophase II During the subsequent cell division, the sister chromatids of each chromosome are separated. During telophase II, the sister chromosomes are surrounded by new nuclear membranes.

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