The Genetic Code

question 39

Multiple Choice

The genetic code

• A) is overlapping.
• B) varies greatly as one goes from viruses to higher organisms.
• C) contains only amino acid signals.
• D) consists of 64 possible codons, all of which are known.

---

Definitions:

Outermost Layer

The external surface or layer of an object or organism, often serving as a protective barrier.

Internal Jugular Veins

Large veins located in the neck that carry blood from the head back to the heart.

Subclavian Veins

Major veins located under the clavicle (collarbone) responsible for draining blood from the upper extremities back to the heart.

Brachiocephalic Veins

Large veins that receive blood from the head, neck, and upper limbs and transport it back to the heart.