DNA Mutations

Front

What is a DNA mutation?

Back

A DNA mutation is a change in the nucleotide sequence of the DNA, which can lead to changes in the structure and function of proteins.

Front

What are the main types of DNA mutations?

Back

The main types of DNA mutations are substitution, insertion, deletion, and inversion.

Front

What is a substitution mutation?

Back

A substitution mutation occurs when one nucleotide is replaced by another, potentially altering the amino acid sequence of a protein.

Front

What is an insertion mutation?

Back

An insertion mutation involves the addition of one or more nucleotides into the DNA sequence, which can shift the reading frame.

Front

What is a deletion mutation?

Back

A deletion mutation occurs when one or more nucleotides are removed from the DNA sequence, which can also shift the reading frame.

Front

What is an inversion mutation?

Back

An inversion mutation occurs when a segment of DNA is reversed within the chromosome, potentially affecting gene expression.

Front

What is a frameshift mutation?

Back

A frameshift mutation is caused by insertions or deletions that change the reading frame of the genetic code, leading to significant changes in the resulting protein.

Front

What is translocation in chromosomal mutations?

Back

Translocation is a chromosomal mutation where a segment of DNA is moved from one location to another, either within the same chromosome or to a different chromosome.

Front

What is the impact of mutations on proteins?

Back

Mutations can lead to changes in the amino acid sequence of proteins, potentially altering their function, stability, or activity.

Front

What is the difference between a silent mutation and a missense mutation?

Back

A silent mutation does not change the amino acid sequence, while a missense mutation results in a different amino acid being incorporated into the protein.