What is the first stage of protein synthesis called?
Transcription
2 of 15
What is the molecule synthesised by transcription?
mRNA
3 of 15
What is the promoter region?
turns the gene on and off and signals the site of transcription.
4 of 15
Where and what is the coding region?
The coding region is the base sequence for the an amino acid on the mRNA molecule.
5 of 15
What is the terminator?
signals the end of transcription.
6 of 15
A triplet is?
the three base nucleotide sequence that codes for and amino acid on the DNA strand.
7 of 15
What does degenerate mean?
one triplet can code for more than one amino acid.
8 of 15
A codon is?
the three nucleotide base sequence on the mRNA molecule that is complementary to the DNA triplet.
9 of 15
What is the second stage of protein synthesis?
Translation
10 of 15
Where does the two stages of protein synthesis take place?
the nucleus and the cytoplasm.
11 of 15
What are the three stop codons?
UAA UAG UGA
12 of 15
What is the role of the organelle that decodes the mRNA?
The ribosome forms around the mRNA for translation. It moves along the mRNA strand reading one codon at a time while the tRNA bring the amino acids into place.
13 of 15
What is the bond that holds the polypeptide chain together?
Peptide bonds.
14 of 15
Why is the process of protein synthesis important?
Proteins act as support and protection e.g nails, feathers, hair etc. Enzymes are essential for metabolic pathways e.g respiration and DNA replication.
15 of 15
Other cards in this set
Card 2
Front
What is the first stage of protein synthesis called?
Back
Transcription
Card 3
Front
What is the molecule synthesised by transcription?
Comments
No comments have yet been made