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

85. The precise alignment of tRNA molecules within the catalytic core of the ribosome is facilitated by

A. Covalent linkages with ribosomal proteins
B. Hydrogen bonding with specific sequences of ribosomal RNA
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C. Hydrophobic interactions with the mRNA poly-A tail
D. Ionic bonds with the nuclear membrane scaffold

📝 Explanation

The structural domains of rRNA inside the A and P binding sites form precise non-covalent contacts to align the tRNA for peptide synthesis.

📖 Additional Information

  • Covalent linkages with ribosomal proteins
  • Hydrogen bonding with specific sequences of ribosomal RNA
  • Hydrophobic interactions with the mRNA poly-A tail
  • Ionic bonds with the nuclear membrane scaffold

The structural domains of rRNA inside the A and P binding sites form precise non-covalent contacts to align the tRNA for peptide synthesis.

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