Question90:-Glycoproteins
A:-contain oligosaccharides linked to the side chain of lysine or histidine residues
B:-contain oligosaccharides linked to the side chain of asparagine, serine, or threonine residues
C:-bind to liver cell-surface receptors that recognize sialic acid residues
D:-are mostly cytoplasmic proteins
Correct Answer:- Option-B
Question91:-Which of the following is an example of a restriction site that shows two-fold rotational symmetry?
A-ATTA
B:-ATAATA
C:-ATAT
D:-ATTTTA
Correct Answer:- Option-C
Question92:-A deficiency in which of the following amino acids will result in the negative nitrogen balance, even though the
diet may contain a large amount of protein
A:-Alanine
B:-Serine
C:-Glutamate
D:-Tryptophan
Correct Answer:- Option-D
Question93:-Which of the following binding interactions is likely to be the most important initial interaction when a drug
enters a binding site?
A:-Van der Waals interactions
B:-Hydrogen bond
C:-lonic
D:-Induced dipole-dipole interactions
Correct Answer:- Option-C
Question94:-During photosynthesis, which of the followings acts as a reservoir for hydrogen ions?
A:-Cristae
B:-Stroma
C:-Thylakoid space
D:-Matrix
Correct Answer:- Option-C
Question95:-Maple syrup urine disease is a deficiency of which amino acid degradative pathway?
A:-Tyrosine
B:-Leucine
C:-Tryptophan
D:-Arginine
Correct Answer:- Option-B
Question96:-The light microscope that is often used to view internal structures of living cells without staining is
A:-Dark-field microscope
B:-Bright-field microscope
C:-Fluorescence microscope
D:-Phase-contrast microscope
Correct Answer:- Option-D

Question97:-You wish to prepare a 10 uM solution of a protein of molecular weight 10,000. Which of the following statement
15 most incorrect?

A:-Weigh out 10 mg and dissolve it in 100 ml of solution
B:-Weigh out 0.1 g and dissolve it in 1 litre of solution
C:-Weigh out mg and dissolve it in 5 ml solution, then dilute this solution tenfold
D:-Weigh out 0.02 g and dissolve it in 20 ml of solution, then dilute this solution 2 fold
Correct Answer:- Option-D

Question98:-Which of the following medium is used to select the heterokaryon hybridoma cell in hybridoma technology?
A:-Hydroxy urea, aminopterine, thym
B:-Hypoxanthine, acetaminophen, thymidine
C:-Hypoxanthine, aminopterine, thicurea
D:-Hypoxanthine, aminopterine, thymidine
Correct Answer:- Option-D

Question99:-An example of inactivated exotoxin
A:-Cholera vaccine
B:-Rabies vaccine