A Proto-Oncogene Differs from a Tumor Suppressor Gene Because a Proto-Oncogene

question 7

Multiple Choice

A proto-oncogene differs from a tumor suppressor gene because a proto-oncogene

• A) may cause cancer if mutated, whereas a tumor suppressor gene cannot.
• B) stimulates mitosis in a normal cell, whereas a tumor suppressor gene inhibits mitosis.
• C) only activates enzymes in a cell that allows metastasis.
• D) inhibits the cell cycle, whereas a tumor suppressor accelerates the cell cycle.
• E) promotes meiosis, whereas a tumor suppressor gene promotes mitosis.

---

Definitions:

Stroke Volume

The volume of blood pumped by the left ventricle of the heart in one contraction.

COPD

Chronic Obstructive Pulmonary Disease, a group of progressive lung diseases characterized by increasing breathlessness, frequent coughing, wheezing, and chest tightness.

Oxygen Delivery Device

Equipment used to supply extra oxygen to individuals who are not getting enough oxygen naturally, such as nasal cannulas or masks.

Nasal Cannula

A medical device used to deliver supplemental oxygen or airflow to a patient in need of respiratory help, consisting of a lightweight tube placed under the nostrils.