The Hormone Calcitonin Functions to

question 54

Multiple Choice

The hormone calcitonin functions to

• A) stimulate osteoclast activity.
• B) stimulate the absorption of calcium and phosphate ions in the digestive tract.
• C) depress calcium levels in body fluids.
• D) depress osteoblast activity.
• E) elevate calcium levels in body fluids.

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Definitions:

Active Repressor

A molecular form of a repressor protein that can bind to specific regions of DNA and inhibit gene transcription.

Transcriptional Activity

The process of copying a segment of DNA into RNA by the enzyme RNA polymerase, crucial in gene expression.

Noncoding Region

Sections of DNA that do not code for proteins but may have regulatory roles in gene expression, chromatin structure, and genome organization.

IGF2 Gene

A gene that encodes the insulin-like growth factor 2, playing a crucial role in growth and development, especially fetal growth.