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exon

A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence.
Noun
pl: exons

This term is used exclusively within the specialized register of molecular biology and genetics. It describes the coding regions of a gene that remain in the final mature RNA after the process of splicing, contrasting directly with introns, which are the non-coding intervening sequences that are removed.

In a technical context, the term is typically used to describe the structural organization of a gene. Because exons are the functional units that determine the amino acid sequence of a protein, they are often discussed in relation to mutations or alternative splicing, where different combinations of exons are joined to create multiple protein isoforms from a single gene.

Meanings

Noun

A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence.

The researchers identified a mutation in the third exon of the gene.

Examples

This is an exon.

This is an exon.

The exon is small.

The exon is small.

Find the first exon.

Find the first exon.

The exon codes for proteins.

The exon codes for proteins.

Each exon has a role.

Each exon has a role.

The exon was spliced out.

The exon was spliced out.

The patient has a mutation in the exon.

The patient has a mutation in the exon.

Health

We studied the exon sequence in class.

We studied the exon sequence in class.

School Life

The exon contains the coding sequence.

The exon contains the coding sequence.

Health

Alternative splicing can skip a specific exon.

Trivia

The mutation occurred within the second exon.

The mutation occurred within the second exon.

Trivia

Exon shuffling contributes to evolutionary diversity.

History

Related Words

Terakhir Diperbarui: May 2026Laporkan Kesalahan