GED Science TestLife ScienceEasy
A medical researcher is studying a rare genetic disorder. She discovers that individuals with the disorder have a mutation in a gene that codes for a protein involved in the regulation of cell division. This mutation causes cells to divide uncontrollably, forming abnormal masses of tissue. This scenario best describes the cellular basis of which disease?
- ADiabetes
- BCystic Fibrosis
- CCancer
- DOsteoporosis
Show answer & explanationAnswer & explanation
Correct answer: C. Cancer
Cancer is fundamentally characterized by uncontrolled cell division and the formation of tumors due to mutations in genes that regulate the cell cycle.
Why the other options are wrong
- A. Diabetes involves issues with insulin production or sensitivity, affecting blood sugar regulation, not uncontrolled cell division.
- B. Cystic fibrosis is a genetic disorder affecting mucus and sweat glands, leading to thick secretions, not uncontrolled cell division.
- D. Osteoporosis is characterized by bone loss and weakened bones, not abnormal cell proliferation.
Cancer
A group of diseases characterized by uncontrolled cell growth and division, leading to the formation of malignant tumors that can invade other parts of the body.
- Caused by mutations in genes that regulate the cell cycle.
- Results in abnormal cell proliferation.
- Can metastasize (spread) to distant sites.
Memory trick: Uncontrolled cell division is the hallmark of cancer, like a car with no brakes.