Mutations

Front

What is a mutation?

Back

A mutation is any change in the sequence of DNA that can affect genetic information.

Front

What type of mutation occurs when one base is replaced by another?

Back

Substitution mutation.

Front

What is the result of a deletion mutation?

Back

A deletion mutation results in the loss of one or more nucleotides 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 is caused by insertions or deletions that change the reading frame of the genetic code.

Front

What molecule is produced during transcription that is complementary to the DNA template strand?

Back

mRNA (messenger RNA).

Front

What is the role of mRNA in protein synthesis?

Back

mRNA carries the genetic information from DNA to the ribosome, where proteins are synthesized.

Front

What is the difference between a point mutation and a frameshift mutation?

Back

A point mutation involves a change in a single nucleotide, while a frameshift mutation involves insertions or deletions that alter the reading frame.

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 inversion in genetics?

Back

Inversion is a mutation where a segment of DNA is reversed end to end within the chromosome.