The Genetic Code Is Said to Be "Degenerate

question 20

Multiple Choice

The genetic code is said to be "degenerate".What does this term indicate about the genetic code?

• A)Different triplet codons serve as code words for the same amino acid.
• B)The genetic code contains regions of nonprotein coding sequences.
• C)The genetic code can easily undergo mutations that can lead to illnesses such as cancer.
• D)The genetic code is repetitive,and is identical in all species.
• E)The genetic code must be rewritten several times before a functional protein is formed.

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Definitions:

Glands

Organs in the body that secrete hormones or other substances directly into the blood or onto a surface within or out of the body.

Sensory Neurons

Nerve cells that transmit sensory information (sight, sound, touch, etc.) to the central nervous system.

Motor Neurons

Nerve cells forming part of the pathway along which impulses pass from the brain or spinal cord to a muscle or gland, facilitating movement and action.

Synaptic Neurons

Neurons that are capable of transmitting a nerve impulse across a synapse to a postsynaptic element, such as another nerve, muscle, or gland.