Frameshift Mutations

question 4

Multiple Choice

Frameshift mutations

• A) cause a change in the reading frame of mRNA codons.
• B) are usually caused by base analogs.
• C) usually occur because of radiation exposure.
• D) cause a single amino acid change in the polypeptide chain.
• E) are usually the result of damage caused by free radicals.

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Definitions:

Cylindrical

Relating to the surface or shape of a cylinder, which is a solid geometric figure with straight parallel sides and a circular or oval cross section.

Spherical

Having the shape of a sphere; relating to or resembling a ball or globe.

Antifriction Bearings

Bearings designed to reduce friction between moving parts while supporting radial and axial loads, often using balls or rollers.

Bearing

A machine element that constrains relative motion to only the desired motion, reducing friction between moving parts.