Types of RNA
This type of RNA is during transcription of a gene.
mRNA (messenger RNA)
A _______ is a sequence of three nucleotides.
codon
Translation occurs in which part of the cell?
the cytoplasm
The mRNA first binds to the _______ ribosomal subunit.
small
What is the order of steps that has to occur to go from a gene to a protein?
DNA - RNA - Protein (replication - transcription - translation)
This type of RNA carries amino acids.
tRNA (transfer RNA)
TRUE or FALSE: A single codon can code for more than one amino acid.
FALSE
Where is rRNA made?
Nucleolus
The first amino acid added to all proteins is _______.
Met (methionine)
If a codon is AAU, what is the anti-codon?
UUA
This type of RNA combines with an enzyme to make the site of protein synthesis.
rRNA (ribosomal RNA)
How many STOP codons are there?
3 (three)
What are the three steps of translation?
initiation, elongation, and termination
Amino acids are joined together by _______ bonds.
peptide (covalent)
The three binding sites on the ribosome are called what?
E - P - A
This structure consists of a small and large subunit, and is often found attached to the Rough ER in eukaryotic cells.
ribosome
There are ____ total codons and ____ total amino acids.
64 and 20
TRUE or FALSE: Each mRNA is only used by one ribosome at a time.
FALSE
What binds to the STOP codon to terminate translation?
release factor
Transfer RNA is double stranded RNA (TRUE or FALSE).
FALSE
This is found on a specific type of RNA and is used to match up to a codon so that the correct amino acid is brought in.
anti-codon
The genetic code is considered _________.
universal
What are the bases in the START codon?
AUG
The polypeptide chain produced at the end of translation is considered what level of protein structure?
primary
A single mRNA can be read by multiple ribosomes at a time (TRUE or FALSE).
TRUE