Which one comes first, Translation or transcription?
Transcription
Translation
What happens in transcription?
mRNA is made
tRNA is made
Fist stage of transcription- The Gene unwinds and unzips by dipping into the ...
Nucleus
Nucleolus
The hydrogen bonds break. 2nd stage- Activated RNA nucleotides bind to exposed complementary bases on the template strand. What does U, G and A bind with? (in order)
C , T , A
T , C, A
A , C, T
The process of complementary base pairing is catalysed by the enzyme...
RNA polymarise
RNA polymerase
Stage 3 of transcription) 2 extra phosphate groups are released, which releases energy for bonding ( ) nucleotides. (Fill in the missing word)
Opposite
Adjacent
Surrounding
The coding strand is what to the base sequence of the new mRNA?
A copy
Complementary
The last stage of transcription; the mRNA is released from the DNA through a pore in the...
Ribosome
Nuclear envelope
What is the first stage of translation?
mRNA binds to a tRNA, attached to the small subunit and is exposed to the large subunit.
mRNA binds to a ribosome, 3 codons are attached to the large subunit and are exposed to the small subunit.
mRNA binds to a ribosome, 2 codons attached to the small subunit and are exposed to the large subunit.
The first mRNA codon is always...
AUG
AUU
tRNA brings the anticodon, then a second tRNA brings a second anticodon. What bonds form between the two adjacent amino acids?
Covalent
polypeptide
peptide
Chemical
Ribose now moves along the mRNA reading the next codon. The polypeptide chain grows until something is reached. What is this something?
Stop anticodon
Stop codon
Stop amino acid
