AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cells of organism make mitosis for?
A
growth
B
repair of damaged tissue
C
replacement of dying cells.
D
All of the above
Explanation: 

Detailed explanation-1: -Mitosis occurs in somatic cells; this means that it takes place in all types of cells that are not involved in the production of gametes. Prior to each mitotic division, a copy of every chromosome is created; thus, following division, a complete set of chromosomes is found in the nucleus of each new cell.

Detailed explanation-2: -The daughter cells from mitosis are called diploid cells. Diploid cells have two complete sets of chromosomes. Since the daughter cells have exact copies of their parent cell’s DNA, no genetic diversity is created through mitosis in normal healthy cells.

Detailed explanation-3: -Mitosis is one way biological cells replicate. During mitosis, a single cell splits into two identical cells. In single-celled organisms, mitosis is the only viable form of reproduction. In complex organisms, mitosis is responsible for repairing damaged tissues and helping an organism grow.

Detailed explanation-4: -Mitosis creates identical copies of cells. For example, it creates new skin cells to replace dead skin cells.

Detailed explanation-5: -Mitosis consists of four basic phases: prophase, metaphase, anaphase, and telophase. Some textbooks list five, breaking prophase into an early phase (called prophase) and a late phase (called prometaphase).

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