mrna and trna

• what is mrna

  type of rna synthesised during the process of transcription
• what does mrna do

  carries genetic information from dna to ribosomes
• what are some features of mrna

  single stranded - linear molecule

  a base sequence complementary to a dna sequence

  codons - sets of three bases code for an amino acid

  small enough to leave the nucleus
• what is the trna

  type of rna used in the process of translation
• what is the role for trna

  transport amino acids to ribosomes to build up a polypeptide chain
• features of trna

  • single stranded molecule folded into a clover leaf shape
  • hydrogen bonds between complementary base pairs to hold in shape
• differences between mrna and trna 


  mrna - carries genetic info from dna to ribosomes

  trna - transports amino acids to the ribosomes to build proteins

  mrna - longer

  trna - shorter

  mrna - no hydrogen bonds

  trna - has hydrogen bonds

  mrna - codon

  trna - anti codon