Introduction to Mutations

Multiple Choice

Variations in DNA base sequences are called

• mutations.

• duplications.

• replication.

• none of the answers are correct

Fill in the Blanks

Mutations are

changes in genetic information.

Fill in the Blanks

Mutations that produce changes in a single gene are known as

mutations.

Fill in the Blanks

Mutations the produce changes in the whole chromosome are known as

mutations.

Multiple Choice

A __ mutation occurs at a single point in the DNA sequence.

• chromosomal

• point

• frame shift

Multiple Choice

If a gene in one cell is altered, the alteration ____ be passed on to every cell that develops from the original cell.

• can

• cannot

Multiple Choice

Which of the following images is a INSERTION?

Multiple Choice

Which of the following images is a DELETION?

Multiple Choice

Which of the following images is a SUBSTITUTION?

Fill in the Blanks

Chromosomal mutations involve

in the number or structure of chromosomes.

Multiple Choice

These mutations can change the __ of genes on chromosomes and can even change the number of copies of some genes.

• size

• location

• type

Multiple Choice

Which of the following statements is a DELETION?

• Produces an extra copy of all or part of a chromosome.

• Reverses the direction of parts of a chromosome.

• Involves the loss of all or part of a chromosome.

• Occurs when part of one chromosome breaks off and attaches to another.

Multiple Choice

Which of the following statements is a TRANSLOCATION?

• Produces an extra copy of all or part of a chromosome.

• Reverses the direction of parts of a chromosome.

• Involves the loss of all or part of a chromosome.

• Occurs when part of one chromosome breaks off and attaches to another.

Multiple Choice

Which of the following statements is a DUPLICATION?

• Produces an extra copy of all or part of a chromosome.

• Reverses the direction of parts of a chromosome.

• Involves the loss of all or part of a chromosome.

• Occurs when part of one chromosome breaks off and attaches to another.

Multiple Choice

Which of the following statements is a INVERSION?

• Produces an extra copy of all or part of a chromosome.

• Reverses the direction of parts of a chromosome.

• Involves the loss of all or part of a chromosome.

• Occurs when part of one chromosome breaks off and attaches to another.

Fill in the Blanks

Genetic material can be altered by

events or by ARTIFICIAL means.

Multiple Choice

Cellular machinery that replicates DNA inserts an incorrect base roughly once in every 10 ___ bases.

• billion

• million

• thousand

• quadrillion

Multiple Choice

Mutagens are

• chemical agents in the environment.

• physical agents in the environment.

• both chemical and physical agents in the environment.

• none of the answer are correct.

Open Ended

What happens when the cell can not repair the damage done by a mutagen?

Multiple Choice

Organisms cannot evolve without mutagens.

• This is a True statement.

• This is a False statement.

Multiple Select

Some of the most harmful mutations are those that ...

(select ALL that apply)

• dramatically change protein structure.

• those that are repetitive in nature.

• those that change gene activity.

• those that are found in plants only.

Multiple Choice

Sickle cell disease is caused by a ___ mutation.

• frameshift

• point

• polyploidy

• none of the answers are correct

Multiple Choice

Some mutations can be to the benefit of the species.

• FALSE

• TRUE

Multiple Choice

Polyploidy is a condition in which an organism has

• extra set of chromosomes.

• missing chromosomes.