Genetic code
The number of nucleotide bases in each genetic code.
Three
These are the types of RNA.
mRNA,tRNA and rRNA
These are the subunits of ribosomes.
Large and small.
The anticodon for mRNA codon 5'-GGC-3'.
3'- CCG-5'
A regulatory protein that binds to DNA and affects transciption of a gene.
transcription factor,
These three are the stop codons.
UAA,UGA,UAG
A codon is present on this type of RNA.
mRNA
This site on the ribosome holds the tRNA that carries the growing polypeptide chain.
P site
This enzyme joins an amino acid to the appropriate tRNA.
Aminoacyl-tRNA synthetase
In transcription, the nucleotide position on the promoter where RNA polymerase begins synthesis of RNA.
start point
This amino acid is coded by the start codon.
Methionine
An anticodon is present on this type of RNA.
tRNA
This site on the ribosome holds the tRNA that carries the next amino acid to be added to the chain.
A site.
Also known as "charged" tRNA.
Aminoacyl tRNA.
A binding site on a ribosome where discharged tRNA leaves the ribosome.
E site
By convention, the sequence of this strand is used when a gene sequence is reported.
coding strand (non-template strand)
Amino acids attach to tRNA at this site.
3' end
The three steps of translation.
Initiation, elongation and termination.
This amino acid will be carried by tRNA having the anticodon 3'- UAC- 5'
Methionine.
Non-template strand of DNA, which has the same sequence as mRNA, except it has thymine instead of uracil.
coding strand
The term for flexible base pairing at the third nucleotide position of a codon.
wobble
An RNA molecule that functions as an enzyme.
ribozyme
This protein binds to the stop codon at the A site of ribosome to terminate translation.
Release factor.
The type of bond between an amino acid and it's specific tRNA.
Covalent bond.
A sequence of about 20 amino acids that is attached to a polpeptide that targets it to the endoplasmic reticulum or other organelles in the eukaryotic cell.
signal peptide