Function, Structure & Types of RNA
~RNA=Ribonucleic Acid~
Fact
• Ribonucleotide in the RNA chain contains ribose(Sugar)
• Ribosomes are composed mostly of RNA
• Ribosomes compose up to about 60% of ribosomes
by mass and providing the location where the mRNA binds
• The smallest RNA is usually about 70-90 nucleotides long
• Viruses may use RNA as it's genome
Functions, Structure & Types
The 3 main types of RNA are Messenger RNA (mRNA),
ribosomal RNA (rRNA) and transfer RNA (tRNA)
| mRNA | rRNA | tRNA | |
| Structure | short, unstable, single-standard RNA, corresponds with gene encoded within DNA | Long, stable RNA, molecules composing of 60% of ribosomes mass | Short (70-90 nucleotides), stable RNA with base pairing. Contains amino acids and binding sites |
| Function | In between DNA and proteins; used by ribosomes to direct synthesis of proteins | Ensures the proper mRNA,tRNA, ribosomes during protein synthesis | Carries the correct amino acids to the active site of protein synthesis in the ribosomes |
OpenStax. “Microbiology.” Lumen, courses.lumenlearning.com/microbiology/chapter/structure-and-function-of-rna/.
Aryal, Sagar. “RNA- Properties, Structure, Types and Functions.” Microbiology Notes, 31 Aug. 2018, microbenotes.com/rna-properties-structure-types-and-functions/.

How damaging is it for a virus to use RNA as its genome?
ReplyDeleteAbout how long are the longest strands of RNA
ReplyDeleteThe longest eukaryotic rRNA strand can only be as long as 5,000 nucleotides.
DeleteThe two largest genes in E coli are the beta and beta prime subunits of RNA polymerase (enzyme that changes its formation of a particular polymer). They encode themselves with the same mRNA. They have about 1,500 amino acids and 9,000 nucleotides