MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Gangliosides consists of - |
| A. | Long chain fatty acid (LCFA) |
| B. | Alcohol -sphingosine |
| C. | Sailic acid |
| D. | All of the above |
| Answer» E. | |
| 2. |
Which hormone synthesized from Tyrosine ? |
| A. | Calcitriol |
| B. | Calcitonin |
| C. | Thyroxin |
| D. | Cortisol |
| Answer» D. Cortisol | |
| 3. |
Cell shape and motility are provided by |
| A. | Microfilaments |
| B. | Microtubules |
| C. | Golgi apparatus |
| D. | Mitochondria |
| Answer» C. Golgi apparatus | |
| 4. |
Property of photochromosity is seen amongst the following amino acids: |
| A. | Aromatic aminoacid |
| B. | Unsaturated aminoacid |
| C. | Dicarboxylic acid |
| D. | Monocarboxylic acid |
| Answer» B. Unsaturated aminoacid | |
| 5. |
Thymidylated RNA present in - |
| A. | rRNA |
| B. | snRNA |
| C. | tRNA |
| D. | mRNA |
| Answer» D. mRNA | |
| 6. |
Glutamine synthetase is a - |
| A. | Ligase |
| B. | Isomerase |
| C. | Transferase |
| D. | Lyase |
| Answer» B. Isomerase | |
| 7. |
Which of the following RNA has abnormal purine bases: |
| A. | rRNA |
| B. | 16S RNA |
| C. | tRNA |
| D. | mRNA |
| Answer» D. mRNA | |
| 8. |
In glycolysis, the first committed step is catalysed by - |
| A. | Hexokinase |
| B. | Phosphofructokinase |
| C. | 2,3 DPG |
| D. | Glucokinase |
| Answer» C. 2,3 DPG | |
| 9. |
Which of the following is true regarding hydroxyl ethyl starch: |
| A. | It is a plasma expander |
| B. | It is an anesthetic agent |
| C. | Used as a nutritional agent |
| D. | It is a crystalloid |
| Answer» B. It is an anesthetic agent | |
| 10. |
Lipoprotein with seavenging action is - |
| A. | VLDL |
| B. | None |
| C. | HDL |
| D. | LDL |
| Answer» D. LDL | |
| 11. |
The following separation technique depends on the molecular size of protein: |
| A. | Chromatography on a carboxymethyl(CM)cellulose column |
| B. | Isoelectric focusing |
| C. | Gel filtration chromatography |
| D. | Chromatography on a diethyl amino ethyl(DEAE)cellulose column |
| Answer» D. Chromatography on a diethyl amino ethyl(DEAE)cellulose column | |
| 12. |
Metabolic acidosis is characterized by - |
| A. | Primary deficit in carbonic acid |
| B. | Primary excess of bicarbonate |
| C. | Primary deficit of bicarbonate |
| D. | Primary excess of carbonic acid |
| Answer» D. Primary excess of carbonic acid | |
| 13. |
In glycolysis, the first commited step is catalysed by - |
| A. | 2, 3 DPG |
| B. | Glucokinase |
| C. | Hexokinase |
| D. | Phosphofructokinase |
| Answer» E. | |
| 14. |
Proteins are sorted by: |
| A. | Ribosomes |
| B. | Nuclear Membrane |
| C. | Golgi Bodies |
| D. | Mitochondria |
| Answer» D. Mitochondria | |
| 15. |
Basic amino acid(s) is/are - |
| A. | Arginine |
| B. | Lysine |
| C. | Methionine |
| D. | All of the above |
| Answer» E. | |
| 16. |
Chain initiation in protein synthesis is by - |
| A. | UGA |
| B. | UAG |
| C. | AUG |
| D. | GLA |
| Answer» D. GLA | |
| 17. |
Mature RBC contains all except - |
| A. | Enzyme of TCA cycle |
| B. | Enzyme of HMP shunt pathway |
| C. | Pyridine nubleotides |
| D. | Glycoytic enzymes |
| Answer» B. Enzyme of HMP shunt pathway | |
| 18. |
Enzyme responsible for complete oxidation of glucose to CO2 to water is present in - |
| A. | Mitochondria |
| B. | Cytosol |
| C. | Endoplasmic reticulum |
| D. | Lysosomes |
| Answer» B. Cytosol | |
| 19. |
Same aminoacid is coded by multiple codons d/t following - |
| A. | Degeneracy |
| B. | Frame-shift mutation |
| C. | Transcription |
| D. | Mutation |
| Answer» B. Frame-shift mutation | |
| 20. |
In synthesis of fatty acids energy is supplied by: |
| A. | NAD |
| B. | FAD |
| C. | GTP |
| D. | NADPH |
| Answer» E. | |
| 21. |
Substrate level phosphorylation is catalysed by - |
| A. | Succinate dehydrogenase |
| B. | Thiokinase |
| C. | Malate dehydrogenase |
| D. | Hexokinase |
| Answer» C. Malate dehydrogenase | |
| 22. |
The similarity between Vit C and Vit K is: |
| A. | Both help in post-translational modification |
| B. | Both help in conversion of proline to hydroxyproline |
| C. | Both are involved in coagulation cascade |
| D. | Both have anti infective activity |
| Answer» B. Both help in conversion of proline to hydroxyproline | |
| 23. |
Fluoroacetate inhibits: |
| A. | Aconitase |
| B. | Citrate synthase |
| C. | Malate dehydrogenase |
| D. | Succinate dehydrogenase |
| Answer» B. Citrate synthase | |
| 24. |
Xanthenuric acid is produced in metabolism of ? |
| A. | Tyrosine |
| B. | Glycine |
| C. | Methionine |
| D. | Tryptophan |
| Answer» E. | |
| 25. |
True about Proto-oncogenes is/are - |
| A. | Normally involved in cell cycle proliferation |
| B. | Produces tumor |
| C. | Normally involved in suppression of tumor production |
| D. | All of the above |
| Answer» E. | |
| 26. |
Which of the following statements about High Density Lipoprotein (HDL)is false: |
| A. | HDL is the best predictor of CAD |
| B. | HDL helps to clear lipids from atheromas |
| C. | HDL increases oxidation of LDL |
| D. | HDL reduces foam cell production by LDL |
| Answer» D. HDL reduces foam cell production by LDL | |
| 27. |
Furasol DA is: |
| A. | Free radical |
| B. | Artificial blood |
| C. | CO antagonist |
| D. | Used to increase O2 delivery to tissue |
| Answer» E. | |
| 28. |
Urea is mainly formed in liver to small extent in - |
| A. | Muscle |
| B. | Brain |
| C. | Spleen |
| D. | Heart |
| Answer» C. Spleen | |
| 29. |
Enzyme that responsible for unwinding of DNA is ? |
| A. | Ligase |
| B. | DNA primase |
| C. | Helicase |
| D. | DNA polymerase |
| Answer» D. DNA polymerase | |
| 30. |
All of the following occur in mitochondria except: |
| A. | Citric acid cycle(Kreb's cycle) |
| B. | Glycogenolysis |
| C. | Fatty Acid Oxidation |
| D. | Electron transport chain |
| Answer» C. Fatty Acid Oxidation | |
| 31. |
Transamination requires: |
| A. | Pyridoxine |
| B. | Thiamine |
| C. | Riboflavin |
| D. | Niacin |
| Answer» B. Thiamine | |
| 32. |
Enzyme activity measured in beri beri is: |
| A. | Decarboxylase |
| B. | Deaminases |
| C. | Transketolase |
| D. | Transaminase |
| Answer» D. Transaminase | |
| 33. |
Translation occurs in: |
| A. | Nucleus |
| B. | Cytoplasm |
| C. | Ribosomes |
| D. | Mitochondria |
| Answer» D. Mitochondria | |
| 34. |
Metabolic bone disease is caused by excess intake of which vitamin - |
| A. | C |
| B. | E |
| C. | A |
| D. | B |
| Answer» D. B | |
| 35. |
Fidelity of protein translation depends on - |
| A. | MRNA polymerase |
| B. | Amino acyl t-RNA synthetase |
| C. | RNA polymerase |
| D. | DNA polymerase |
| Answer» C. RNA polymerase | |
| 36. |
Which of the following is not degraded by colonic flora ? |
| A. | Lignin |
| B. | Pectin |
| C. | Glucose |
| D. | Starch |
| Answer» B. Pectin | |
| 37. |
Okazaki fragment helps in |
| A. | DNA replication |
| B. | Translation |
| C. | Protein synthesis |
| D. | Transcription |
| Answer» B. Translation | |
| 38. |
Highly repetitive DNA seen in - |
| A. | Centromere |
| B. | Microsatelite DNA |
| C. | Telomere |
| D. | All of the above |
| Answer» E. | |
| 39. |
All of the following enzymes are involved in oxidation -reduction reactions,Except |
| A. | Hydrolases |
| B. | Dehydrogenases |
| C. | Peroxidases |
| D. | Oxygenases |
| Answer» B. Dehydrogenases | |
| 40. |
Which of the following aminoacid is excreated in urine in maple syrup urine disease: |
| A. | Phenylalanine |
| B. | Tryptophan |
| C. | Arginine |
| D. | Leucine |
| Answer» E. | |
| 41. |
Maximum damage to DNA is caused by - |
| A. | Alpha rays |
| B. | Beta rays |
| C. | Gamma rays |
| D. | UV rays |
| Answer» B. Beta rays | |
| 42. |
About oxidative phosphorylation true is - |
| A. | Utilazation of ATP's |
| B. | Utilazation of NADP |
| C. | Generation of ATP's |
| D. | Generation of ADP's |
| Answer» D. Generation of ADP's | |
| 43. |
Collagen of which type is found in hyaline cartilage - |
| A. | Type II |
| B. | Type I |
| C. | Type IV |
| D. | Type III |
| Answer» B. Type I | |
| 44. |
A child presents with metabolic lactic acidosis along with hyperammonemia and convulsion is due to - |
| A. | Urea cycle defect |
| B. | Phenylketonuria |
| C. | Reye's syndrome |
| D. | Mitochondrial enzyme disorders(MELAS) |
| Answer» D. Mitochondrial enzyme disorders(MELAS) | |
| 45. |
Alcoholic group is found in - |
| A. | Ganglioside |
| B. | Sphingomyelin |
| C. | Cerebroside |
| D. | All of the above |
| Answer» E. | |
| 46. |
In hemoglobin the innate affinity of heme for carbon monoxide is diminished by the presence of - |
| A. | His E7 |
| B. | His F8 |
| C. | Thr C4 |
| D. | Gly B6 |
| Answer» B. His F8 | |
| 47. |
Regarding glutathione which of the following is/are true - |
| A. | It helps in absorption of certain amino acids |
| B. | It inactivates some enzymes |
| C. | It helps in membrane transport |
| D. | All of the above |
| Answer» D. All of the above | |
| 48. |
What is involved in formation of d-TMP from d-UMP? |
| A. | N5 formyl folate |
| B. | Dihydro folate |
| C. | N5, N10 methoylene tetra hydrofolate |
| D. | From imino folate |
| Answer» D. From imino folate | |
| 49. |
On complete hydrolysis of DNA,we will get all of the following except- |
| A. | Adenosine |
| B. | Purine bases |
| C. | Phosphoric acid |
| D. | Deoxy pentose sugar |
| Answer» B. Purine bases | |
| 50. |
Sickle cell ancmia is the clinical manifestation of homozygous genes for an abnormal haemoglobin molecule. The event responsible for the mutation in the B chain is - |
| A. | Nondisjunction |
| B. | Point mutation |
| C. | Insertion |
| D. | Deletion |
| Answer» C. Insertion | |