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Nucleotide Mutations

Total questions: 12

Worksheet time: 6mins

Name
Class
Date
1.

This type of mutation in DNA alters just one base in a DNA sequence

a)

point mutation

b)

translocation

c)

inversion

d)

trisomy

2.

In this type of point mutation, one nitrogen base is exchanged for another, different base

a)

substitution

b)

insertion

c)

deletion

d)

translocation

3.

In this type of point mutation, one extra base pair is inserted into a sequence of DNA

a)

substitution

b)

insertion

c)

deletion

d)

translocation

4.

In this type of point mutation, one base pair is lost/deleted

a)

substitution

b)

insertion

c)

deletion

d)

translocation

5.

This class of mutations changes the reading frame for transcription and translation

a)

substitution

b)

inversion

c)

translocation

d)

frameshift

6.

The bottom DNA sequence in the image has been altered by this type of mutation

a)

substitution

b)

insertion

c)

deletion

d)

translocation

7.

The bottom DNA sequence in the image has been altered by this type of mutation

a)

substitution

b)

insertion

c)

deletion

d)

translocation

8.

The bottom DNA sequence in the image has been altered by this type of mutation

a)

substitution

b)

insertion

c)

deletion

d)

translocation

9.

This type of mutation occurs when the DNA change does not alter the amino acid sequence of the polypeptide

a)

silent

b)

missense

c)

nonsense

d)

6th sense

10.

This type of mutation occurs when the DNA change alters a single amino acid in the polypeptide chain

a)

silent

b)

missense

c)

nonsense

d)

6th sense

11.

This type of mutation occurs when the DNA change creates a premature STOP codon which truncates the polypeptide

a)

silent

b)

missense

c)

nonsense

d)

6th sense

12.

This type of mutation is possible because certain codons may code for the same amino acid

a)

silent

b)

missense

c)

nonsense

d)

6th sense