PROTEIN SYNTHESIS LATEST FINAL EXAM UPDATED FOR 2025-2026
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'A' is transcription and 'B' is translation.
DNA is the molecule of heredity that contains instructions to build proteins. In 1958, Francis
Crick described the central dogma of molecular biology explaining the process of gene
expression. What do A and B represent in the image?
DNA has no hydroxyl group on the second carbon.
You can observe the main differences between DNA and RNA. Which statement is true?
C
The mRNA strand is synthesized in the 5' to 3' direction. The circles in the image indicate the
chemical group to which the next base is attached. Which image has the circle in the correct
position?
The position of a carbon atom in the sugar backbone
DNA and mRNA synthesis proceeds in the 5' to 3' direction. What do 5' and 3' refer to?
P
Protein synthesis is performed by an RNA-protein complex called the ribosome. As you can see
in the image, a ribosome is composed of 3 sites called E, P, and A. To which site does tRNA add
its amino acid to the polypeptide chain
Ribosomes, 2
Where do eukaryotic cells synthesize proteins and which number represents this organelle in
the image?
Codon
What is the name of each sequence of three nitrogen- containing bases of RNA that codes for
one amino acid?
The personnel, the experiment, and the environment
The biosafety cabinet is important for physical containment. In this lab we will use a biosafety
cabinet class II. Who or what does a level II biosafety cabinet protect?
