medical MCQs – Page 187

Practise multiple-choice questions from medical for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

medical Mcqs

1. oral anatomy 2. microbiology 3. oral pathology and medicine 4. physiology 5. biochemistry 6. general anatomy 7. dental materials 8. pharmacology 9. pathology 10. oral histology

3721. The initiation codon for protein synthesis is_____________?
0

A. UAA

B. UAG

C. AUG

D. UUU

3722. The correct dentition in a 9- years old child is_____________?
0

A. 12 CDE6

B. 123DE6

C. 12C456

D. 123456

3723. Normal level of serum phosphorous is_____________?
0

A. 7-9 mgm%

B. 1-2 mgm%

C. 2.5 4.5 mgm%

D. 40-50 mgm%

3724. Free radicals can be inactivated by the following enzymes EXCEPT__________________?
0

A. Superoxide dismutase

B. Catalase

C. Glutathione peroxidase

D. Myeloperoxidase

3725. The first permanent tooth to erupt in the oral cavity is the_____________?
0

A. Mandibular central incisor

B. Maxillary first molar

C. Mandibular first molar

D. Maxillary central incisor

3726. Enzymes increase reaction rates by______________?
0

A. Decreasing the energy of activation

B. Altering the free energy of the action

C. Inhibiting the backward reaction

D. Enhancing the forward reaction

3727. Normal serum alkaline phosphatase level is_____________?
0

A. 0.1-0.4 Bodansky units

B. 1-4 Bodansky units

C. 1000-4000 Bodansky units

D. 100-400 Bodansky units

3728. The ketone bodies, which are excreted in diabetic ketoacidosis ?
0

A. Acetoacetic acid and oxalocacetic acid

B. Acetoacetic acid and pyruvic acid

C. Acetoacetic acid and beta hydroxyl butyric acid

D. Acetoacetic acid and alpha ketoglutaric acid

3729. How many cusps does the crown of the maxillary first primary molar have ?
0

A. 3

B. 5

C. 4

D. 2

3730. The tooth bud for the third molar is initiated at about the age of______________?
0

A. 6th month I.U

B. 8th year of life

C. 2nd year of life

D. 1st year of life

3731. Nonsense codons bring about__________________?
0

A. Pre-translational modification of protein

B. Termination of protein synthesis

C. Elongation of polypeptide chain

D. Initiation of protein synthesis

3732. Non polar lipid act as______________?
0

A. Electrical insulators

B. Electrolytes

C. Non electrical insulators

D. Irons

3733. Calcitonin is antagonist_______________?
0

A. Triidothyronine

B. Thyroxine

C. Parathyroid hormone

D. Serotonin

3734. True about G protein couple receptors is _________________ ?
0

A. G protein is bound to GTP in resting state

B. All the three subunits alpha, beta and gamma should bind each other for G protein to act

C. G proteins bind to hormones on the cell surface

D. G Proteins act as inhibitory and excitatory because of difference in alpha subunit

3735. In Hartnups disease _______ is excreted in the urine?
0

A. Glutamine

B. Ornithine

C. Phenylalanine

D. Tryptophan

3736. The main pathway for De Novo synthesis of fatty acids occurs in_______________?
0

A. Mitochondria

B. None of the above

C. Nucleus

D. Cytosol

3737. Which of the following is used in recombinant DNA technology ?
0

A. PCR

B. None of these

C. Reverse transcriptase FISH

D. Restriction endonucleases

3738. In the body, metabolism of 10 g of protein would produce approximately____________?
0

A. 410 Kcal

B. 41 Kcal

C. 1 Kcal

D. 4100 Kcal

3739. Primary dentition period is______________?
0

A. From 6 months to 6 years

B. From 6 months to 11 years

C. From birth to 11 years

D. From 6 years to 11 years

3740. All are derived of cholesterol except________________?
0

A. Testosterone

B. Chenodeoxy cholic acid

C. Cholecystokinin

D. Glycocholic acid

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