Define ribosomal RNA..... With functions no copy pasted answer required........
Answers
Ribosomal RNA-
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1). It present in ribosomes,hence the name ribosomal RNA.
2). It consists of single strand.
the single strand is folded upon itself in certain regions.
3). In folded region, complementary base pairing occurs, while in unfolded regions,it is absent.
Hence,r-RNA does not show purine-pyramidine equality.
4). It constitutes about 80% of the total RNA content of the cell.
5). The molecular weight ranges from 40,000 to 100,000.
function of r-RNA --
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1). It provides proper binding site for m -RNA on the ribosome.
2). it oerints m-RNA molecules in such a way that all the codons are properly read.
3). It releases t-RNA molecules after transfer of activated amino acid to polypeptide chain.
4). It also protects the protein molecule under construction.
5). it also protects m-RNA from RNase enzyme.
Answer:
RNA, molecule in cells that forms part of the protein-synthesizing organelle known as a ribosome and that is exported to the cytoplasm to help translate the information in messenger RNA into protein.