Exploring Types of DNA Mutations

What is a point mutation?

• An insertion of a base

• A change in the entire DNA sequence

• A change in a single base

• A deletion of a base

What is the effect of a deletion mutation?

• It changes a single amino acid

• It causes a frameshift affecting all subsequent amino acids

• It only affects the start codon

• It has no effect on the amino acid sequence

How does a deletion mutation affect the resulting protein?

• The protein becomes more efficient

• The protein remains functional

• The protein becomes non-functional

• The protein's function is enhanced

What happens during an insertion mutation?

• A base is added

• A base is removed

• A segment of DNA is inverted

• A base is substituted

What is the likely outcome of a protein after an insertion mutation?

• The protein's function is enhanced

• The protein becomes non-functional

• The protein's function is unchanged

• The protein remains functional

What does an inversion mutation do?

• Inverts a segment of DNA

• Removes a base

• Substitutes a base

• Adds a base

Do all mutations affect protein function?

• Yes, all mutations enhance protein function

• No, only mutations in the coding section affect protein function

• No, only mutations in non-coding sections affect protein function

• Yes, all mutations are harmful

What must be read first during translation to begin coding the protein?

• A stop codon

• An insertion mutation

• A start codon

• A deletion mutation

When will a mutation have no effect on the protein?

• If it changes a single base

• If it causes a frameshift

• If it occurs before or after the protein coding sequence

• If it occurs in the coding section