Mutations

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence of an organism's genome.

Front

Are all mutations harmful?

Back

No, most mutations are silent and some can cause beneficial traits that increase evolutionary fitness.

Front

What is a point mutation?

Back

A point mutation is a mutation in which only one nucleotide is altered.

Front

What is a substitution mutation?

Back

A substitution mutation occurs when one nucleotide is replaced by another in the DNA sequence.

Front

What is a deletion mutation?

Back

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

Front

What is an insertion mutation?

Back

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

Front

What is a frameshift mutation?

Back

A frameshift mutation occurs when nucleotides are added or deleted from the DNA sequence, altering the reading frame.

Front

What is an inversion mutation?

Back

An inversion mutation occurs when a segment of DNA is reversed within the chromosome.

Front

What is translocation in genetics?

Back

Translocation is a 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 significance of silent mutations?

Back

Silent mutations do not change the amino acid sequence of a protein and often have no effect on the organism.