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Mcqs MBBS Exams India
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(Single Best Answer) Question 121: Which one of the following acts as seconds messenger ?
A) Mg++
B) Cl-
C) Ca++
D) PO43-
Answer (Select an option above to get the answer):
(Single Best Answer) Question 122: Blackening of urine occurs in ?
A) Alkaptonuria
B) Phenylketonuria
C) Maple syrup urine disease
D) Isovaleric aciduria
Answer (Select an option above to get the answer):
(Single Best Answer) Question 123: Oxygen dependent killing is done through ?
A) NADPH Oxidase
B) Superoxide dismutase
C) Catalase
D) Glutathione peroxidase
Answer (Select an option above to get the answer):
(Single Best Answer) Question 124: All are true for m-rna except ?
A) Capping helps in attachment of m-rna to 40s ribosome
B) In Eukaryotes is regulated by GTP to GDP transformation
C) The first Amino acid is Methionine
D) Synthesized from dna 3' - 5'
Answer (Select an option above to get the answer):
(Single Best Answer) Question 125: Transport of Ascorbic acid to lens is done by ?
A) Myoinositol
B) Choline
C) Taurine
D) Na-K ATPase
Answer (Select an option above to get the answer):
(Single Best Answer) Question 126: Northern blot is used for analysis of ?
A) mRNA expression
B) DNA
C) Protein
Answer (Select an option above to get the answer):
(Single Best Answer) Question 127: All are true about proteoglycans except ?
A) Contains amino sugars
B) Contains small amounts of water
C) Forms structural elements in connective tissue
D) Chondroitin sulphate is an example
Answer (Select an option above to get the answer):
(Single Best Answer) Question 128: Mucopolysaccharide hyaluronic acid is present in ?
A) Vitreous humour
B) Cornea
C) Blood vessels
D) Synovial fluid
Answer (Select an option above to get the answer):
(Single Best Answer) Question 129: Dinitrophenol causes ?
A) Uncoupling of Electron Transport Chain and oxidative phosphorylation
Answer (Select an option above to get the answer):
(Single Best Answer) Question 130: For protein purification and analysis all are used except ?
A) centrifugation
B) densitometry
C) electrophoresis
D) chromatography
Answer (Select an option above to get the answer):

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