Exploring Types of DNA Mutations

The video tutorial explains different types of DNA mutations, including point mutations, deletions, insertions, and inversions. It describes how these mutations can affect amino acid sequences and protein functionality, particularly through frame shifts. The tutorial emphasizes that not all mutations impact protein synthesis, as they must occur within the coding section of DNA. The video concludes with a reminder to subscribe and follow on social media.

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