Lecture05_DNA mutation

Multiple Choice

Which of the following is NOT a requirement for a molecule to serve as genetic material?

• Ability to store information

• Ability to replicate

• Ability to express information

• Ability to directly influence traits

Multiple Choice

A nonsense mutation results in:

• A new amino acid being coded

• A stop codon that terminates translation prematurely

• No change in the amino acid sequence

• A duplication of a chromosome segment

Multiple Choice

Which of the following best describes a transition mutation?

• A purine replaces a pyrimidine

• A pyrimidine replaces a purine

• A purine replaces a purine or a pyrimidine replaces a pyrimidine

• A base is deleted from the sequence

Multiple Select

Which of the following are examples of frameshift mutations?

• Substitution

• Deletion

• Insertion

• Transition

Categorize

Options (11)

Point mutation

Nonsense

Missense

Neutral

Transition

Transversion

Loss-of-function

Gain-of-function

Lethal

Somatic

Germline

Organize the type of mutations by its categories

By molecular change

Effect on function

By location

Multiple Choice

What does the variation in the number of mutant bacteria in the experiment suggest about the nature of mutations?

• Mutations are always adaptive.

• Mutations are induced by viruses.

• Mutations occur at random.

• Mutations do not occur in bacteria.

Multiple Choice

Which of the following are examples of extraneous factors that can induce mutations?

• Radiation

• UV light

• Natural and synthetic chemicals

• All of the above