Mutations

Front

What is a mutation?

Back

A change in the genetic material of a cell.

Front

What is Klinefelter syndrome?

Back

A genetic condition in males characterized by the presence of an extra X chromosome (XXY).

Front

What is trisomy?

Back

A genetic condition where there are three copies of a chromosome instead of the usual two.

Front

What is a frameshift mutation?

Back

A mutation caused by insertions or deletions of nucleotides that shift the reading frame of the genetic code.

Front

What is the effect of ultraviolet (UV) radiation on DNA?

Back

UV radiation can cause bonds to form between adjacent thymine bases, leading to mutations.

Front

What is monosomy?

Back

A genetic condition where there is only one copy of a chromosome instead of the usual two.

Front

What is non-disjunction?

Back

The failure of homologous chromosomes or sister chromatids to separate properly during cell division.

Front

What is base pair substitution?

Back

A type of mutation where one base pair in the DNA sequence is replaced by another.

Front

What is the role of DNA replication?

Back

To make an exact copy of the DNA molecule for cell division.

Front

What is a mutagen?

Back

An agent that causes changes in the DNA sequence, leading to mutations.