Results HD Quiz powered by harmonic design #1. Which option is correct about a chlorophyll molecule? Methyl group on second pyrrole ring Chemical formula is C55H70O6N4Mg Porphyrin ring with nitrogen in center Aldehyde group on second pyrrole ring #2. Which of the statements is NOT true about natural selection? It can improve the adaptation of species It is regional in nature It is selected by a breeder it affects variation that are heritable #3. Immediate next stage of spermatogonia differentiation is: Secondary spermatocytes Sperms Spermatids Primary spermatocytes #4. The accumulation of ‘lactic acid’ in the muscles results in: Convulsion Paralysis Muscle contraction Extreme fatigue #5. Corpus luteum during female reproductive cycle produces Testosterone FSH LH Progesterone #6. Depolarization during conduction of nerve impulse is due to Outward movement of K+ Inward movement of Na+ Inward movement of K+ Outward movement of Na+ #7. __________ is transmitted through infected blood and hypodermic syringes Vibrio Cholerae (Cholera) Morbilli Virus (Measles) Influenza Virus HIV #8. The chromosomes were first observed by: Mendel Griffith T.H Morgan Walther #9. Which of the following is NOT a bone in upper limb? Ulna Radius Femur Humerus #10. Identify the correct pair of vestigial organs: Vermiform appendix & Heart Heart & Liver Ear muscles & Vermiform appendix Ear muscles & Liver #11. Which feature is possessed by smooth muscles? Uni-nucleate Voluntary Branched Striated appearance #12. Range of normal total lung capacity in humans is: 5-6 liters 10-11 liters 8-9 liters 12-13 liters #13. Insulin converts glucose into Cortisone Vitamins Lipids Minerals #14. Which of the following neurotransmitters is lying outside the CNS? Dopamine Acetylcholine Gamma - Aminobutyric acid Endorphins #15. The organelles only found at seeding stage in oil seed plants are: Glyoxiosomes Peroxiosomes Vacuoles Microbodies #16. The change in frequency of alleles at a locus that occurs by chance is known as: Speciation Genetic drift Non random mating Mutation #17. Which of the following is included in paired cranial bones? Vomer Frontal Temporal Occipital #18. What is the percentage of H2O in bone cells? 70% 66% 99% 20% #19. The formula calculating the frequency of genotypes and alleles in a population gene pool is known as: Hardy-Weinberg equation James Hutton equation Lamarck equation Darwin equation #20. In human myelinated fibers nerve impulse travels at __________ m/s 160-180 190-210 100-120 130-150 #21. Induced fit model of enzyme activity suggests that an enzyme Can bind to a single substrate Can catalyze related reaction Cannot modify its active sites Usually belongs to non-regulatory enzyme #22. In Calvin cycle CO2 reacts with RuBP to produce: 1,3 bisposphglycerate G3P 3-PGA 6-carbon Unstable Intermediate #23. Which monosaccharide will from a glucopyranose ring in solution? Fructose Deoxyribose Glucose Ribose #24. Which of the following hormone is responsible for the labor pains in human female at the time of birth of baby? Estrogen Progesterone Oxytocin Corticosteriod #25. The causative organism of Measles is: Picornovirus Papovirus Paramyxovirus Poxvirus #26. Which of the following process Is Involved in breakdown of protein into amino acids? Glycolysis Fixation Condensation Hydrolysis #27. Chromosomal abnormality in Turner syndrome is represented by? XXX XYY XXY XO #28. In the journey of electron from photosystem-II to photosystem-I plastocyanine is reduced by: Cytochrome complex Plastoquinone Primary electron acceptor of PS-I P700 #29. The hydrophilic end of phospholipld molecule Is polar because of the presence of: Phosphate group Glycerol Amine group Fatty acid #30. Which of the following is the function of Golgi Complex? Processing of cell secretions Autolysis Autophagy Intracellular digestion #31. Which of the following is NOT a feature of Autonomic Nervous System? Regulate response of smooth muscles Regulate response of visceral organs Regulate response of glands Regulate response of skeletal muscles #32. Example of viruses having a polyhedral capsid that is with 252 capsomeres is: Bacteriophage Influenza Virus Adenovirus Tobacco Mosaic Virus #33. The nucleus takes dyes due to the presence of: Metal ions Chromatin Thylakoids Lipid #34. Nissl’s granules are groups of: Lysosomes Mesosomes Chromosomes Ribosomes #35. The PS-II during light reactions receives electrons from splitting: Plastocyanin Plastoquinone Ferrodoxin Water #36. Mono-saccharides have a general formula represented by: Cn(H2O)n Cn(H2O)n C2(H2O)n C(H2O)n #37. Which of the following skeletal disorder is an example of autoimmune disorder? Spondolysis Sciatica Rheumatoid arthritis Rickets #38. Polysaccharides in plants are synthesized by the process of: Condensation Glycolysis Hydrolysis Oxidation #39. The main function of epididymis is to: Hold the process of spermatogenesis Connect with urethra Produce semen Transport sperms #40. In the life cycle of a bacteriophage, the lysozymes are required in which of the following steps of infection process? Genome injection Replication Penetration Adsorption #41. Taste receptors are an example of: Chemoreceptors Mechanoreceptors Photoreceptros Nociceptors #42. Due to process of follicle atresia: Follicle degenerates Follicles reach maximum size Graafian follicle ovulates Follicle starts to mature #43. About 70% of carbon dioxide is carried in blood as: Bicarbonates Tricarbonates Carbonate Carbonic anhydrase #44. Thick filaments in skeletal muscles are composed of: Tropomyosin Myosin Troponin Actin #45. During non conducting stage, the neuron membrane is permeable to efflux of: K+ Cl+ Ca+ Na+ #46. Female reproductive system consists all of the following EXCEPT Cervix Ovaries Seminiferous tubules Oviduct #47. Enzyme NADP reductase is responsible for: Oxidizing NADP+ Reducing Ferrodoxin Reducing P700 Reducing NADP+ #48. Sarcomere is part of myofibril between: Two A bands Two Z lines Two M lines Two I bands #49. The idea of inheritance of acquired characteristics was presented by: Alfred Wallace Charles Darwin Thomas Malthus Jean Baptist Lamarck #50. Posterior lobe of pituitary produce: FSH ADH ACH TSH #51. fluid secreted by sertoli cells provide liquid medium, protection and nourishment to: Oocyte Sperms Polar body Spermatogonia #52. Bone forming cells are Osteoblasts Osteons Osteocytes Osteoclasts #53. Which of the following increases variation within a gene pool? Gene mutation Random fusion of gametes Crossing over Chromosomes inversion #54. Which of the following is INCORRECT regarding rate of enzymatic action Increase in enzyme concentration decreases the rate Increase in enzyme concentration increases the rate All enzymes work at their maximum rate at optimum pH All enzymes work at their maximum rate at optimum temperature #55. Medulla oblongata is a part of: Midbrain Forebrain Hippocampus Hindbrain #56. When glycerol reads with fatty acid, which type of chemical bond will form? Ester bond Ionic bond Hydrogen bond Ether linkage Previous Finish