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Mcqs MBBS Exams India
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(Single Best Answer) Question 51: To synthesize insulin on a large scale basis, the most suitable starting material obtained from the beta cells of the pancreas is ?
A) Genomic DNA
B) Total cellular RNA
C) cDNA of insulin
D) mRNA of insulin
Answer (Select an option above to get the answer):
(Single Best Answer) Question 52: By which of the following anticoagulants used in estimating blood glucose, glycolysis is prevented ?
A) EDTA
B) Heparin
C) Sodium fluoride
D) Sodium citrate
Answer (Select an option above to get the answer):
(Single Best Answer) Question 53: Apart from occurring in nucleic acids, pyrimidines are also found in ?
A) Theophylline
B) Theobromine
C) Flavin mononucleotide
D) Thiamin
Answer (Select an option above to get the answer):
(Single Best Answer) Question 54: Vitamin A is stored mainly as retinol esters in ?
A) Kidney
B) Muscle
C) Liver
D) Retina
Answer (Select an option above to get the answer):
(Single Best Answer) Question 55: Idiopathic nyctalopia is due to a hereditary ?
A) Absence of rod function
B) Absence of cone function
C) Absence of rod and cone functions
D) Decrease of cone function
Answer (Select an option above to get the answer):
(Single Best Answer) Question 56: The following diseases have defect in DNA repair mechanism except for ?
A) Xeroderma Pigmentosa
B) Fanconi syndrome
C) Huntington's disease
D) Hereditary non polyposis colon cancer
Answer (Select an option above to get the answer):
(Single Best Answer) Question 57: Substitution of which one of the following amino acids in place of alanine would increase the absorbance of protein at 280 nm ?
A) Leucine
B) Arginine
C) Tryptophan
D) Prolein
Answer (Select an option above to get the answer):
(Single Best Answer) Question 58: Which of the following situations will lead to increased viscosity of blood ?
A) Fasting state
B) Hypoglycemia
C) Multiple myeloma
D) Amyloidogenesis
Answer (Select an option above to get the answer):
(Single Best Answer) Question 59: If cellular proteins do not fold into a specific conformation, their functions are affected. Certain disorders arise, if specific proteins are misfolded. Which of the following disorders arises due to conformational isomerization ?
A) Familial fatal insomnia
B) Hepatitis delta
C) Pernicious anemia
D) Lesch - Nyhan Syndrome
Answer (Select an option above to get the answer):
(Single Best Answer) Question 60: Secretory proteins are synthesized in ?
A) Cytoplasm
B) Endoplasmic Reticulum
C) First in cytoplasm and then in Endoplasmic Reticulum
D) First in Endoplasmic Reticulum and then in cytoplasm
Answer (Select an option above to get the answer):