A Single Base Mutation Occurs in a Gene That Codes

question 80

Multiple Choice

A single base mutation occurs in a gene that codes for a protein due to an error in DNA replication. Which of the following outcomes would possibly not occur?

• A)The mutation results in improved, the same, or diminished protein function.
• B)The mutation results in a longer or shorter protein or a protein of the same length.
• C)The mutation results in a human disease such as sickle-cell disease.
• D)The mutation results in mRNA being made from the protein.

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Definitions:

Infancy

The period in a human's life that ranges from birth to the age of two, characterized by rapid physical and psychological development.

Synaptic Terminals

The extremities of axons that make synaptic connections with other neurons, releasing neurotransmitters to transmit nerve impulses.

Resting Potential

Resting potential is the electrical difference across the neuronal membrane when the neuron is not actively sending a signal, typically around -70 millivolts.

Neurotransmitters

Substances that carry messages through a chemical synapse from one neuron to another neuron, muscle, or gland cell, facilitating signal transmission.