Examine the Following Diagram

question 65

Multiple Choice

Examine the following diagram.Which is most likely to have occurred in panel 3,depicting invasion?

• A) loss of adhesion dependence
• B) initiation of angiogenesis
• C) mutation of a proto-oncogene into an oncogene
• D) activation of tumor suppressor genes

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Definitions:

Infundibulum

A funnel-shaped structure; in the human body, it is part of organs such as the brain (connecting the pituitary gland to the hypothalamus) and the female reproductive system (the fallopian tubes).

Negative Feedback Mechanism

A regulatory process in biological systems where the output of a system inhibits or slows the processes leading to the output, ensuring stability.

Stimulus

Any external or internal factor that influences the activity of a living organism or any of its parts.

Calcitonin

A hormone produced by the thyroid gland that helps regulate calcium levels in the blood.