It helps in attachment of two ribosomal units:
Correct answer: B. Magnesium ions
- A. Calcium ions
- B. Magnesium ions
- C. Chloride ions
- D. Sodium ions
Explanation
Magnesium ions are essential for the attachment of two ribosomal subunits because they stabilize the ribosomal RNA (rRNA) structure and the interactions between RNA and ribosomal proteins. This stabilization is crucial for the proper assembly and function of ribosomes, which are the molecular machines responsible for protein synthesis. Calcium, chloride, and sodium ions serve different roles in cellular processes and do not facilitate the attachment of ribosomal units.
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