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BIO NMDCAT Ribonucleic acid (RNA)
nmdcat.online July 3, 2026

40. The non-coding sequences present within a primary RNA transcript that are excised during processing are known as

A. Exons
B. Introns
✓
C. Promoters
D. Codons

📝 Explanation

Introns are intervening sequences that do not code for proteins and are spliced out before the mRNA leaves the nucleus.

📖 Additional Information

  • Exons
  • Introns
  • Promoters
  • Codons

Introns are intervening sequences that do not code for proteins and are spliced out before the mRNA leaves the nucleus.

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