List of top Zoology Questions on Protein Synthesis

Which of the statements regarding the sequence of events from DNA to RNA to protein to enzyme (hexokinase) is correct? A. The linear sequence of deoxyribonucleotides in the DNA encoding hexokinase is transcribed into an RNA molecule with the complementary ribonucleotide sequence.
B. The RNA sequence is translated into the linear protein chain of hexokinase.
C. The linear sequence of deoxyribonucleotides in the DNA encodes for protein hexokinase.
D. The linear protein chain of hexokinase folds into its native three-dimensional shape, aided by molecular chaperones, to catalyze the phosphorylation of glucose using ATP as the phosphoryl group donor.

Choose the correct sequence of events involved in the synthesis of a secretory protein:

Proteins can be separated according to size by following techniques except:
A. Isoelectric focusing
B. SDS-PAGE
C. Ion exchange chromatography 
D. Molecular exclusion chromatography
Choose the correct answer from the options given below :

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Scaffolding proteins are non-histone chromosomal proteins.
Reason R: Scaffolding proteins are abundant in lysine and Arginine.
In the light of the above statements, choose the most appropriate answer from the options given below :

Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: Treatment of immunoglobulin IgG with β-mercaptoethanol gives rise to two heavy chains and two light chains peptides on SDS-PAGE.
Reason R: β-mercaptoethanol breaks peptide bond at the site of disulphide linkage.
In the light of the above statements, choose the most appropriate answer from the options given below:

The ribozyme that catalyses peptide bond formation during prokaryotic protein synthesis is :