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WorksheetsMutations
Total questions: 10
Worksheet time: 10mins
Which mutation involves a single nucleotide being replaced with a different nucleotide?
Substitution
Insertion
Deletion
Which mutation involves a single nucleotide being added into a DNA sequence?
Substitution
Insertion
Deletion
Which mutation involves a single nucleotide being removed from a DNA sequence?
Substitution
Insertion
Deletion
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.
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
ATG CCA AAT
ATG CCA AAT
Genetic mutations can be...
beneficial, harmful, or neutral
beneficial only
harmful only
neutral only
