What is RNA: A nucleic acid that consists of a long chain of nucleotides.
Comparing DNA and RNA: Differences
  • The sugar in RNA is ribose instead of deoxyribose.
  • RNA is generally single-stranded and not double-stranded
  • RNA contains Uracil in place of Thymine.

The Functions of RNA: RNA has 3 main functions
1) The messenger RNA: The molecules that carry copies of the instructions to assemble amino acids
2) The Ribosomal RNA: Forms an important part of both subunits of the ribosomes.
3) The Transfer RNA: Carries amino acids to the ribosome and matches them to the coded mRNA message.

RNA Synthesis:
Transcription: Segments of DNA serve as templates to produce complementary RNA molecules.

Protein Synthesis: mRNA containing codons enters the cytoplasm and into the ribosome. Anticodons are attached, amino acids are formed and connect to create proteins.