M2 RNA - 3 Forms Flashcards
1
Q
mRNA
A
- Copy of a template strand
- Single stranded
- Has codons
- Made during transcription
- Moves to ribosome as a template for protein synthesis
2
Q
rRNA
A
- Complex molecule accounting for half the mass of a ribosome
- Has small subunit and large subunit
- Translation takes place on ribosomes
- Contains enzyme peptidyl transferase which catalyses the formation of peptide bonds
3
Q
tRNA
A
- Small, single stranded (80 nucleotides)
- Clover leaf shape
- Specific binding site for 20 different amino acids
- Contains an unpaired triplet base called an anticodon
- Carries an amino acid to ribosome where they are bonded together to form a polypeptide
