When Is a Single Base Substitution Mutation Least Likely to Be

question 22

Multiple Choice

When is a single base substitution mutation least likely to be deleterious?

• A)when the single base change results in a stop codon
• B)when the single base change results in a codon that specifies the same amino acid as the original codon
• C)when the base change results in an amino acid substitution that alters the tertiary structure of the protein
• D)when the base change results in an amino acid substitution at the active site of an enzyme

Diagnose common failures associated with starter motors and their connection to vehicle ignition systems.

Demonstrate knowledge of starter motor troubleshooting techniques, including the use of jumper wires for testing.

Understand the basic principles of how an alternator generates electrical current.

Identify common defects and their effects on battery charging and alternator performance.

---

Definitions:

Dial Gauge Type

A category of measurement tools that use a dial to indicate small distances or angles, often used for precision engineering.

Yield Point

The stress at which a material begins to deform permanently, marking the end of elastic behavior and the beginning of plastic behavior.

Clamping Pressure

The force applied by a device to hold or secure objects tightly together, preventing movement or separation.

Allen Wrench

Hex-shaped wrenches designed to fit into recessed hex Allen screws.