NEET BIOLOGY

Detailed explanation-1: -The formation of ribosomes involves the assembly of the ribosomal precursor RNA with both ribosomal proteins and 5S rRNA (Figure 8.28). The genes that encode ribosomal proteins are transcribed outside of the nucleolus by RNA polymerase II, yielding mRNAs that are translated on cytoplasmic ribosomes.

Detailed explanation-2: -Eukaryote ribosomes are produced and assembled in the nucleolus. Ribosomal proteins enter the nucleolus and combine with the four rRNA strands to create the two ribosomal subunits (one small and one large) that will make up the completed ribosome (see Figure 1).

Detailed explanation-3: -How do you make a ribosome? Some chromosomes have sections of DNA that encode ribosomal RNA, a type of structural RNA that combines with proteins to make the ribosome. In the nucleolus, new ribosomal RNA combines with proteins to form the subunits of the ribosome.

Detailed explanation-4: -A ribosome is an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell.

Detailed explanation-5: -The nucleolus is composed of RNA and proteins, which form around specific chromosomal regions. It is one of the main components of the nucleus. The chain of RNA and DNA along with other components form the structural components.