Mutations

What is a mutation?

• A mutation is a type of virus.

• A mutation is any change in the sequence of DNA.

• A mutation is a form of genetic engineering.

• A mutation is a method of DNA replication.

What is a point mutation?

• A change in a single base pair in the DNA sequence.

• A change in multiple base pairs in the DNA sequence.

• A deletion of a segment of DNA.

• An insertion of a new gene into the DNA.

What are the types of mutations?

• Deletion, Insertion, Substitution, Rearrangement

• Deletion, Insertion, Alteration, Rearrangement

• Duplication, Inversion, Insertion, Deletion

• Alteration, Substitution, Rearrangement, Duplication

What happens during a deletion mutation?

• A deletion mutation occurs when one or more bases are removed from the DNA sequence.

• A deletion mutation occurs when one or more bases are added to the DNA sequence.

• A deletion mutation occurs when the DNA sequence is reversed.

• A deletion mutation occurs when the DNA sequence is duplicated.

What is an insertion mutation?

• An insertion mutation occurs when one or more bases are added to the DNA sequence.

• An insertion mutation occurs when one or more bases are deleted from the DNA sequence.

• An insertion mutation occurs when the DNA sequence is reversed.

• An insertion mutation occurs when the DNA sequence is duplicated.

What is the effect of a mutation on a codon?

• A mutation can change the sequence of a codon, potentially altering the amino acid produced.

• A mutation has no effect on the codon sequence.

• A mutation always results in a stop codon.

• A mutation can only change the codon if it occurs in the third position.

What is a transgenic organism?

• An organism that has been genetically modified to contain DNA from another species.

• An organism that has been bred for specific traits without genetic modification.

• An organism that can survive in extreme environmental conditions.

• An organism that has been cloned from a single cell.

How can environmental factors cause mutations?

• Environmental factors like radiation and chemicals can damage DNA, leading to mutations.

• Environmental factors have no effect on DNA.

• Environmental factors only affect the physical appearance of organisms.

• Environmental factors can only cause mutations in plants.

Can mutations lead to cancer?

• Yes, mutations can cause cancer by disrupting normal cell functions.

• No, mutations have no effect on cell functions.

• Only certain types of mutations can lead to cancer.

• Mutations only affect non-cancerous cells.

What is the role of DNA repair mechanisms?

• To enhance genetic mutations

• To fix mutations to maintain genetic stability

• To promote cell division

• To eliminate all genetic material