Question

information from extra nucleotides that are not a portion of the code for a specific protein are removed prior to the completion of transcription. these extra nucleotides are called
nucleosomes.
exons.
introns.
anticodons.

Explanation:

• Nucleosomes are structures formed by DNA and histone proteins.
• Exons are the coding regions of a gene that remain in the mature mRNA.
• Introns are non - coding nucleotide sequences that are removed during RNA processing.
• Anticodons are found on tRNA and pair with codons on mRNA.

Since the question is about non - coding nucleotides removed during transcription, introns fit this description.

Answer:

introns.