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Mcqs MBBS Exams India
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(Single Best Answer) Question 2791: Vitamin B12 acts as coenzyme to which one of the following enzymes ?
A) Isocitrate dehydrogenase
B) Homocysteine methyl transferase
C) Glycogen synthase
D) G-6-P dehydrogenase
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2792: Base substitution mutations can have the following molecular consequences except ?
A) Changes one codon for an amino acid into another codon for that same amino acid
B) Codon for one amino acid is changed into a codon of another amino acid
C) Reading frame changes downstream to the mutant site
D) Codon for one amino acid is changed into a translation termination codon
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2793: Which one of the following is the complementary sequence of - 5' TTAAGCGTAC 3' ?
A) 5' GTACGCTTAA 3'
B) 5' AATTCGCATG 3'
C) 5' CATGCGAATT 3'
D) 5' TTAAGCGTAC 3'
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2794: During phagocytosis, the metabolic process called respiratory burst involves the activation of ?
A) Oxidase
B) Hydrolase
C) Peroxidase
D) Dehydrogenase
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2795: During replication of DNA, which one of the following enzymes polymerizes the Okazaki fragments ?
A) DNA Polymerase I
B) DNA Polymerase II
C) DNA Polymerase III
D) RNA Polymerase I
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2796: A common feature of all serine proteases is ?
A) Autocatalytic activation of zymogen precursor
B) Tight binding of pancreatic trypsin inhibitor
C) Cleavage of protein on the carboxyl site of serine residues
D) Presence of Ser-His-Asp catalytic triad at the active site
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2797: A 5 year old patient is scheduled for tonsillectomy. On the day of surgery he had running nose, temperature 37.5° C and dry cough. Which of the following should be 'the most appropriate decision for surgery ?
A) Surgery should be cancelled
B) Can proceed for surgery if chest is clear and there is no history of asthma
C) Should get x-ray chest before proceeding for surgery
D) Cancel surgery for 3 week and patient to be on antibiotic
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2798: A two month old infant has undergone a major surgical procedure. Regarding post operative pam relief which one of the following is recommended ?
A) No medication is needed as infant does not feel pain after surgery due to immaturity of nervous system
B) Only paracetamol suppository is adequate
C) Spinal narcotics via intrathecal route
D) Intravenous narcotic infusion in lower dosage
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2799: Blalock and Taussig shunt is done between ?
A) Aorta to Pulmonary artery
B) Aorta to Pulmonary vein
C) Subclavian artery to Pulmonary vein
D) Subclavian vein to artery
Answer (Select an option above to get the answer):
(Single Best Answer) Question 2800: Which of the following intravenous induction agents is the most suitable for day care surgery ?
A) Morphine
B) Ketamine
C) Propofol
D) Diazepam
Answer (Select an option above to get the answer):