Gene Mutation

Any change in the sequence of DNA is...

• transgenic shift
• Single Genotype
• Monohybrid Trait
• Mutation

Tags

NGSS.HS-LS3-2

What type of gene mutation has occurred here?

Normal DNA : T-G-A-C-C-A

Mutated DNA: T-G-A-C-C-A-A

• Base Substitution

• Base Deletion

• Base Insertion

• Frameshift

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

• Base Substitution
• Base Insertion
• Base Inversion
• Translocation

Tags

NGSS.HS-LS3-2

Where do mutations occur?

• DNA and RNA
• DNA 
• RNA
• mRNA and tRNA

Tags

NGSS.HS-LS3-2

A nonsense mutation produced _________.

• Shorter polypeptide chain

• A slightly altered polypeptide chain

• A shift in the reading frame

• The regulatory sequence being altered.

A base pair substitution can result in all of the following except __________.

• Missense mutation
• Frameshift Mutation
• Silent Mutation
• Nonsense mutation

Tags

NGSS.HS-LS3-2

What kind of mutation is the result of an insertion?

• Silent Mutation
• Missense mutation
• Nonsense mutation
• Frameshift mutation

This type of substitution codes for a stop codon

• Missense
• Nonsense
• Silent
• Deletion

Tags

NGSS.HS-LS3-2

A type of substitution in which no  amino acids change is called 

• Missense
• Nonsense
• Silent
• Deletion

Tags

NGSS.HS-LS3-2

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.

Tags

NGSS.HS-LS1-1

NGSS.HS-LS3-2