AP BIOLOGY

CELL DIVISION

THE CELL CYCLE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is true about interphase?
A
Interphase is the stage between G0 and G1
B
Interphase is the stage where a cell typically spends most of its time
C
Interphase is composed of G0, G1, S, G2 and M
D
Interphase is a period of rest for the cell
Explanation: 

Detailed explanation-1: -A typical cell spends the majority of its time in interphase, which is the phase of the cell cycle. The metabolic or “everyday life” phase of the cell is known as the interphase, during which the cell develops, replicates its DNA in order to be ready for mitosis, and does other “typical” cell operations.

Detailed explanation-2: -There are three stages of interphase: G1 (first gap), S (synthesis of new DNA ), and G2 (second gap). Cells spend most of their lives in interphase, specifically in the S phase where genetic material must be copied. The cell grows and carries out biochemical functions, such as protein synthesis, in the G1 phase.

Detailed explanation-3: -A cell spends most of its time in what is called interphase, and during this time it grows, replicates its chromosomes, and prepares for cell division. The cell then leaves interphase, undergoes mitosis, and completes its division.

Detailed explanation-4: -Interphase is the longest part of the cell cycle. This is when the cell grows and copies its DNA before moving into mitosis. During mitosis, chromosomes will align, separate, and move into new daughter cells. The prefix inter-means between, so interphase takes place between one mitotic (M) phase and the next.

Detailed explanation-5: -Most cells of adult mammals spend about 24 hours in interphase; this accounts for about 90%-96% of the total time involved in cell division. Interphase includes G1, S, and G2 phases. Mitosis and cytokinesis, however, are separate from interphase.

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