Question

cancer is best defned as:
a programmed cell death
b uncontrolled cell division
c a normal checkpoint
d production of ribosomes

Explanation:

• Option A: Programmed cell death is called apoptosis, not cancer.
• Option B: Cancer is characterized by uncontrolled cell division. Mutations in genes that regulate cell growth and division lead to cells dividing without proper regulation, forming tumors.
• Option C: A normal checkpoint is part of the cell - cycle control system to ensure proper cell division, not cancer.
• Option D: Production of ribosomes is a normal cellular process (occurs in the nucleolus) and not related to cancer.

Answer:

B. Uncontrolled cell division