3. Ribonucleic Acid(RNA)
RNA(Ribonucleic acid) is a nucleic acid essential for coding,decoding,regulation and
expression of genes.Both DNA and RNA are nucleic acid but they have differences.
RNA(Ribonucleic acid) is made up of ribose sugar,a phosphate and a bases.
RNA NUCLEOTIDE
4. TYPES OF RNA
•mRNA(messenger RNA)delivers a copy of the DNA code to the ribosome.
•tRNA(transfer RNA)carries amino acids from the cytoplasm to match the mRNA
sequence.
5. •rRNA(ribosomal RNA)combine with proteins and enzymes in the cytoplasm to form
ribosome,which act as the site of protein synthesis.
6. Differences between DNA and RNA
Major differences DNA RNA
Bases ATCG AUCG
Structure Antiparallel helix Hairpin and loops
Sugar Deoxyribose Ribose
Location Nuclear or mitochondrial Nuclear or cytoplasm
Lifetime Long Short
Process Transcription Translation
Types Nuclear DNA,mtDNA tRNA,mRNA,rRNA
