Which structure is called the "little nucleus" and what is its role?
GeneralClass 12AllAnswered 27 Mar 2026
Answer
The nucleolus is often referred to as the "little nucleus" because it appears as a small, dense structure within the nucleus. Its primary roles include:
- Ribosome production: Manufacturing and assembling ribosomal RNA (rRNA) and ribosomal proteins
- Ribosome assembly: Combining rRNA with proteins to form ribosomal subunits
- RNA processing: Modifying and processing various types of RNA
The nucleolus is essential for protein synthesis because it produces the ribosomes that will later translate genetic information into proteins throughout the cell. Despite lacking a membrane, it remains a distinct and vital region within the nucleus.
Suggested Q&A
General · Class 12- GeneralClass 12Electric Field at Centre of Ring with Non-Uniform Charge Distribution. Four quadrants carry linear charge densities: +2λ, −2λ, +λ, −λ. Find electric field at centre.
- GeneralClass 12P°(hexane) = 408 Torr, P°(heptane) = 141 Torr. x(hexane) = 0.300. Find Y₆ and Y₇.
- GeneralClass 122N₂O₅(g) → 4NO₂(g) + O₂(g). Initial P = 50 mmHg; P at 30 min = 87.5 mmHg. Find P at 60 min.
- GeneralClass 12What is the difference between psychosis and neurosis?
- GeneralClass 12What is the difference between prism and a pyramid?
- GeneralClass 12What is the difference between phrase and clause?