Match the following steps of protein synthesis.
Question 4 options:
The amino acids are joined together as the ribosome moves along the mRNA.
The RNA polymerase binds to the correct starting sequence of the gene at the promoter sequence.
The amino acid chain (polypeptide) is released and folds into its final shape, forming the protein coded for in the DNA.
Charged tRNA complexes attach to the ribosome. The anticodons of the tRNA match the codon over which the ribosome is sitting.
An mRNA transcript is formed by the addition of RNA nucleotides complementary to the template strand of DNA being copied.
Transcription begins as a short segment of the DNA double helix is unwound by RNA polymerase.
Eventually, the ribosome reaches the stop codon and translation stops.
Translation begins when the small subunit of a ribosome recognizes the start codon. The ribosome is made up of rRNA and proteins.
When the transcript is completed, the mRNA undergoes post-transcriptional modification before moving to the cytoplasm. Spliceosomes remove the introns and the remaining exons are joined together, and a 5 cap and 3 poly-A tail are added.