WorksheetsMutations Molecular
Total questions: 9
Worksheet time: 6mins
A mutation in which only one nucleotide is altered is called a:
Frameshift Mutation
Deletion Mutation
Point Mutation
Insertion Mutation
What mutation has occurred here?
T-G-A-C-C-A
T-G-A-G-C-A
Substitution
Deletion
Insertion
Frameshift
ATT-TGA-GCC- Original
ATT-GAG-CC - Mutated
The example above is an example of a
Insertion- Frameshift
Deletion- Substitution
Deletion -Frameshift
All of the above
What type of gene mutation has occurred here? Normal-
AGA-TTC-ATA-GCG
Mutant-
AGA-TTC-AAT-AGC-G
deletion frameshift
insertion frameshift
substitution
nonsense
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.
