Free Printable Genetic Mutations

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Genetic Mutations

Total questions: 10

Worksheet time: 5mins

Name

Class

Date

A mutation is defined as:

A change in the cell's structure

Anything that changes in an embryo

Any change in the physical features of a human

A change in the DNA sequence

A mutation in which only one nucleotide is altered is called a:

Frameshift Mutation

Deletion Mutation

Point Mutation

Insertion Mutation

Which of the following would result in a frameshift mutation?

Insertions only

Substitution only

Deletion only

Insertions and Deletions

What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A

Substitution

Deletion

Insertion

Frameshift

DNA molecule segment is : TTACGCAAG
The mutated DNA segment is TTCGCAAG. This is an example of ___ mutation.

Substitution

Deletion

Insertion

Inversion

Why are insertion and deletion (frameshift) mutations so harmful?

They change all of the codons from the mutation on down the line, which changes the amino acid sequence

They insert things that an organism doesn't need.

They often delete things that organisms need.

Insertion and deletions are not any more harmful than substitution mutations.

Identify the DELETION mutation from the following:

ATG CCA AAT

ATG TCA AAT

ATG CCT AAA T

ATC CA AT

ATG CCA AAT

Identify the SUBSTITUTION mutation from the following:

ATG CCA AAT

ATG TCA AAT

ATG CCT AAA T

ATC CA AT

ATG CCA AAT

What type of mutation is shown in the diagram?

Point mutation - missense

Frameshift Mutation - deletion

Frameshift Mutation - addition

Point mutation - nonsense

10.

Study the scenario above.

The picture best describes...

Genetic mutation

Chromosomal mutation

Natural selection

Natural evolution

Reset

Genetic Mutations

Total questions: 10

Worksheet time: 5mins

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