AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The time from the beginning of one cell division to the beginning of the next is the
A
Cell cycle
B
Mitosis
C
Meiosis
D
None of these
Explanation: 

Detailed explanation-1: -These events include duplication of its genome and synthesis of the cell organelles followed by division of the cytoplasm. Human cells exhibit typical eukaryotic cell cycle and take around 24 hours to complete one cycle of growth and division.

Detailed explanation-2: -In eukaryotic cells, the time and phases from the beginning of one cell division until the beginning of the next cell division is called the cell cycle (Figure 1).

Detailed explanation-3: -Prophase. Mitosis begins with prophase, during which chromosomes recruit condensin and begin to undergo a condensation process that will continue until metaphase. In most species, cohesin is largely removed from the arms of the sister chromatids during prophase, allowing the individual sister chromatids to be resolved.

Detailed explanation-4: -The cell cycle is a series of changes the cell goes through from the time it is first formed until it divides into two daughter cells. It starts at mitosis (M-phase) and ends with mitosis.

Detailed explanation-5: -Phases of the Cell Cycle The cell cycle is a 4-stage process consisting of Gap 1 (G1), synthesis (S), Gap 2 (G2), and mitosis (M), which a cell undergoes as it grows and divides. After completing the cycle it either starts the process again from G1 or exits through G0.

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