are nucleotide sequences in DNA and RNA that do not express or code for proteins.

Introns

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Transposons

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Anticodons

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Exons

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Solution

The correct option is A Introns
A molecule of RNA obtained after trancription has two types of sequences - coding sequences or exons and non-coding sequences or introns. It then undergoes a process called RNA splicing, RNA splicing removes the intervening, non-coding sequences of genes (introns) from pre-mRNA and joins the protein-coding sequences (exons) together in order to enable translation of mRNA into a protein.

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