Choose the Correct Answer from the List Below

question 31

Multiple Choice

Choose the correct answer from the list below. Not all of the answers will be used.
-Changes in ____________ create amyloid fibers which are insoluble and are the source of mad cow disease, and Alzheimer's, and Parkinson's diseases.

• A)amino
• B)water
• C)protons
• D)DNA
• E)secondary structure
• F)tertiary structure
• G)Ramachandran
• H)RNA
• I)domain
• J)cystine
• K)proline
• L)Sanger
• M)D amino acids
• N)cysteine

---

Definitions:

Biological Clock

An internal mechanism that regulates bodily rhythms and cycles, such as sleep and wakefulness, on a roughly 24-hour cycle.

Pineal Gland

A small endocrine gland in the brain that produces the hormone melatonin, which regulates sleep and wakefulness.

Melatonin

A hormone produced by the pineal gland that regulates sleep-wake cycles and is influenced by the presence of light.

Biological Clock

An internal mechanism in organisms that controls the cycle of biological processes and behaviors in a roughly 24-hour cycle.