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Mutuations

Total questions: 13

Worksheet time: 4mins

Name
Class
Date
1.

Mutations are...

a)

Changes in the sequence of DNA

b)

Broken chromosomes

c)

Bad genes

2.

What is a type of Mutation?

a)

Deletions

b)

Insertions

c)

Base Substitutions

d)

All of the Above

3.

Mutations can be...

a)

Harmful

b)

Beneficial

c)

Neutral

d)

All of the Above

4.

A substitution mutation occurs when

a)

a base pair is missing from the DNA strand

b)

a base pair is added to the DNA strand

c)

a base pair is replaced with a different base pair

5.

An insertion/additon mutation occurs when

a)

a base pair is missing from the DNA strand

b)

a base pair is added to the DNA strand

c)

a base pair is replaced with a different base pair

6.

A deletion mutation occurs when

a)

a base pair is missing from the DNA strand

b)

a base pair is added to the DNA strand

c)

a base pair is replaced with a different base pair

7.

This is considered the most harmful type of gene mutation. It occurs when the codon reading frame is shifted and creates a chain reaction of errors in amino acids.

a)

Duplication

b)

Frameshift

c)

Insertion

d)

Deletion

8.

This type of mutation occurs when part of a chromosome is added "backwards" meaning the genes would be read in reverse order.

a)

Insertion

b)

Inversion

c)

Translocation

d)

Deletion

9.

This type of mutation occurs when part of a chromosome is broken off and incorrectly added to a different chromosome.

a)

Insertion

b)

Inversion

c)

Translocation

d)

Deletion

10.

Which type of mutation is USUALLY more deadly/dangerous for an individual?

a)

Gene/DNA mutation

b)

Chromosomal mutation

11.

Which type of mutation is shown here?

a)

Gene deletion

b)

Chromosomal deletion

c)

Gene insertion

d)

Chromosomal duplication

12.

Which type of mutation is shown here?

a)

Insertion

b)

Deletion

c)

Duplication

d)

Substitution

13.
DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.
a)
Substitution
b)
Deletion
c)
Insertion
d)
Inversion