1. Replication of mitochondrial DNA is caused by which type of DNA polymerasegammadeltaalphabetaQuestion 1 of 20 2. Which of the following statements regarding mature cytoplasmic messenger RNA is true?its molecular weight is more than hn-RNATranscribed from nuclear DNAsugar is deoxyriboseHas thiamine in place of UracilQuestion 2 of 20 3. True about charge in amino acidNeutral at isoelectric pHCarboxyl group can form positive chargeAll of the aboveAmino group can form negative chargeQuestion 3 of 20 4. McArdles disease is due to deficiency ofMyophosphorylaseGlucose 1,6 diphosphataseGlucose 6 phosphataseGlucose 1 phosphataseQuestion 4 of 20 5. Vitamin A toxicity causesNight blindnessIncreased intracranial pressureDecreased intracranial pressureWernickes encephalopathyQuestion 5 of 20 6. Glycine is used for synthesis of the following exceptHemeSerotoninPurineCreatineQuestion 6 of 20 7. "Classical phenyl ketonuria" is caused by deficiency ofPhenylalanine transaminasePhenylalanine hydroxylaseTyrosine transaminaseTyrosine hydroxylaseQuestion 7 of 20 8. Which of the following is NOT a characteristic feature of allosteric enzymes?Give sigmoid shaped curveFollow Michaelis-Menton kineticsPresence of Modulator siteThey are multienzyme complexesQuestion 8 of 20 9. Method to determine protein structure isInfra red spectroscopyX-ray crystallographyElectrophoresisNMR spectroscopyQuestion 9 of 20 10. The most common pathway of glycolysisEntner Doudoroff pathwayEmbden Meyerhof pathwayPentose phosphate pathwayUrea pathwayQuestion 10 of 20 11. Low insulin to glucagon ratio favours which enzymeHexokinaseglucose 6 phosphatasePyruvate kinaseGlucokinaseQuestion 11 of 20 12. Vitamin B12 and folic acid supplementation in megaloblastic anemia leads to the improvement of anemia due toIncreased DNA synthesis in bone marrowIncreased hemoglobin productionIncreased iron absorptionErythroid hyperplasiaQuestion 12 of 20 13. The long and short arms of chromosomes are designated respectively asp and q armsl and s armsq and p armsm and q armsQuestion 13 of 20 14. true about isoenzymes issame distribution in different organscatalyse the same reactionsame enzyme classification with same numberssame quaternary structureQuestion 14 of 20 15. DNA replication takes place in which phase of cell cycleG1MSG2Question 15 of 20 16. Chief regulator of systemic iron homeostasisHaptoglobinTransferrinHepcidinFerritinQuestion 16 of 20 17. Transport proteins areBulky proteinsFibrous proteinsThreaded proteinsGlobular proteinsQuestion 17 of 20 18. Which of the following is not involved in RNA interferencemRNADroshaPashamiRNAQuestion 18 of 20 19. Which of these is a water soluble vitamin?Vit EVit AVit DVit B12Question 19 of 20 20. Leucine is a amino acid with aNegatively charged side chainNon polar side chainPositively charged side chainPolar side chainQuestion 20 of 20 Loading...