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BIOLOGY
Q.151 If DNA strand is GCTATGG mRNA strand synthesized from it would be: A) CGAUACC C) CGATACC B) CGTATGC D) CGUTCC
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Q.153 Tissue rejection is executed by: lymphocytes C) B-lymphocytes B) Monocytes D) T-lymphocytes
Q.154 Which of the following statement best describes the function of sinoatrial node? A) It sends out electrical impulses to ventricles to contract. B) It is present at upper end of the left atrium C) It consists of small number of diffusely oriented cardiac fibers. D) It sends out electrical impulses to atrial muscles causing both atria to contract.
Q.155 A central cavity of the kidney where urine is collected after filtration is known as: A) Ureter C) Urethra B) Pelvis D) Urinary Bladder Q.156 Aldosterone plays role in: A) Transport of water C) Uptake of sodium in loop of Henle B) Transport of K+ ions into kidney D) Reabsorption of water
Q.157 Technique used for non-surgical removal of kidney stone is called: A) Ultrasound C) Dialysis B) Lithotripsy D) X-ray
Q.158 Microcephaly, the small sized skull is due to: A) Nutritional Cause C) Hormonal Causes B) Skeleton Damage D) Genetic Defect
Q.159 The joints that allow movements in several directions are: A) Hinge Joints C) Fibrous Joints B) Ball and Socket Joints D) Cartilaginous Joints
Q.160 The collagen fibers of bone are hardened by deposit of: A) Calcium phosphate C) Calcium carbonate B) Calcium oxalate D) Calcium bicarbonate
Q.161 Which of the following neurotransmitters lies outside the central nervous system? A) Serotonin C) Acetylcholine B) Dopamine D) Adrenaline
Q.162 Which hormonal pair shares a common hypothalamic releasing factor? A) STH and LH C) FSH and STH B) ACTH and LH D) FSH and LH
Q.163 Which of the following will happen if fertilization does not occur? A) Menopause starts C) FSH secretion is increased B) Corpus luteum degenerates D) Progesterone secretion is increased
Q.164 Newborn infant may acquire serious eye infections, if his/her mother has: A) Genital herpes C) Gonorrhea B) AIDS D) Syphilis
Page 15 of 18 Q.165 At the cephalic end of primitive streak, closely packed cells form a local thickening known as: A) Henson’s Node C) Primitive Ridge B) Gastrocoele D) Primitive Gut
Q.166 In plants, the red light favours: A) Enhancement of cell differentiation C) Maturation of the cells B) Elongation of cells D) Enhancement of cell division
Q.167 The reaction between the phosphate group of one nucleotide and hydroxyl group of another is a ______ synthesis in DNA molecule. A) Dehydration C) Oxidation B) Rehydration D) Reduction
Q.168 Enzyme which attaches the Okazaki fragments in lagging strand is called: A) Restriction endonuclease C) DNA helicase B) Primase D) DNA ligase
Q.169 In phenylketonuria, phenylalanine is not degraded because of defective enzyme: A) Phenylalanine hydrogenase C) Phenylalanine oxidase B) Phenylalanine phosphate D) None of these
Q.170 Males with XXY chromosomes suffer from: A) Klinefelter’s Syndrome C) Down’s Syndrome B) Jacob’s Syndrome D) Edward’s Syndrome
Q.171 Internal program of events and sequences of morphological changes by which cell commit a suicide is collectively called: A) Necrosis C) Metastasis B) Epistasis D) Apoptosis
Q.172 Phragmoplast is formed from vesicle which originates from: A) Smooth Endoplasmic Reticulum C) Ribosome B) Golgi Complex D) Rough Endoplasmic Reticulum
Q.173 When phenotype of a heterozygote is in between the phenotypes of both the homozygote parents, it is called: A) Incomplete dominance C) Pleiotropy B) Epistasis D) Codominance
Q.174 Which one of correct about ‘Rh+’ blood? A) Will produce anti-Rh antibodies if given Rh+ blood C) Rh+ antigens are present on RBCs B) Cannot produce anti-Rh antibodies in any case D) Rh+ antibodies are present in blood
Q.175 Temperature-insensitive (thermostable) enzyme used in PCR is: A) DNA polymerase I C) DNA ligase B) DNA polymerase III D) Taq polymerase
Q.176 Cloning is a form of: A) Parthenogenesis C) Sexual Reproduction B) Apomixis D) Asexual Reproduction
Q.177 Antigens to treat Non-Hodgkin’s lymphoma are produced by: A) Wheat Plant C) Tobacco Plant B) Rice Plant D) Corn Plant
Q.178 The survival of an organism during the struggle for existence is not random, but depends on: A) Its genetic constitution C) Its ability to over-produce B) Its ability to acquire characters D) Its ability to over-eat
Q.179 Evolutionary relationships amongst species are reflected in their: A) DNA and proteins C) DNA and gene B) RNAs and proteins D) DNA and RNAs
Page 16 of 18 Q.180 If all the members of a population are homozygous for the same allele, that allele is said to be: A) Random in population’s pool C) Random in a species B) Fixed in population’s pool D) Fixed in the gene pool
Q.181 Diseases in living organisms which are caused by parasites are called: A) Disinfestations C) Infections B) Antisepsis D) Infestations
Q.182 The nutrient cycles are also called: A) Biogeochemical cycles C) Bio element cycles B) Biochemical cycles D) Geochemical cycles
Q.183 The productivity of aquatic ecosystem is determined by: A) Water C) Light B) Light and nutrients D) Nutrients
Q.184 What is the drawback of nuclear energy? A) It causes radiation pollution C) It is very expensive B) It is not long lasting D) It pollutes the air
Q.185 Arteriosclerosis is: A) A metabolic disorder C) An infectious disorder B) A degenerative Disorder D) A nutritional deficiency disorder
Q.186 Antibiotics act against: A) Bacterial Diseases C) Bacterial and Viral Diseases B) Allergies D) Viral Diseases
Q.187 Immediate source of energy for cellular metabolism is: A) Lipids C) Carbohydrates B) ATP D) Proteins
Q.188 Haemoglobin exhibits: A) Secondary Structure C) Quaternary Structure B) Primary Structure D) Tertiary Structure
Q.189 Pepsin enzyme is produced in an inactive form and is activated in situation when it is required because: A) Not produced in complete form C) It does not work efficiently at that time B) Quite capable of destroying cells internal structure D) None of the above
Q.190 Enzyme after catalysis detaches itself from the product: A) Completely C) Changed B) Incompletely D) Unchanged
Q.191 A group of ribosomes attached to messenger RNA is known as: A) Ribosome C) Nucleosome B) Lysosome D) Polysome
Q.192 Detoxification of harmful drugs within the cell is done by: A) Nucleolus C) Ribosomes B) Smooth Surface Endoplasmic Reticulum D) Food Vacuoles
Q.193 Tay-Sach’s disease is due to the presence of an enzyme that is inverted in the catabolism of: A) Proteins C) Ascorbic Acid B) Carbohydrates D) Lipids
Q.194 What is true about pattern baldness? A) It is autosomal recessive disease in males C) It is X-linked disease B) It is autosomal dominant disease in males D) It is Y-linked disease
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Q.195 Symptoms of Herpes Simplex is: A) Abdominal Pain C) Vesicular lesions in the epithelial layer B) Fever D) Failure of immune system
Q.196 The major cell infected by the HIV is: A) Leucocyte C) Helper T-lymphocyte B) Monocyte D) B-lymphocyte
Q.197 ___________ are used as important vectors in genetic engineering. A) Ribosomes C) Nucleoids B) Plasmids D) Mesosomes
Q.198 Which of the following is aerobic bacterium? A) Spirochete C) E. coli B) Cyanobacteria D) Pseudosomanas
Q.199 The giant amoebas inhabit mud at the bottom of fresh water ponds and obtain energy from: A) Microscopic bacteria C) Anaerobic bacteria B) Aerobic bacteria D) Methanogenic bacteria
Q.200 A large group of parasitic protozoa, some of which causes various diseases such as malaria to humans, are: A) Aschelminthes C) Annelida B) Platyhelminthes D) Arthropods
Q.201 Penicillin is obtained from: A) Penicillium notatum C) Aspergillus fumigatus B) Aspergillus flavus D) Penicillium chrysogenum
Q.202 Which of the following components is less resistant to decay? A) Lignin C) Chitin B) Starch D) Cellulose
Q.203 __________ are bioindicators of air pollution. A) Cyanobacteria C) Mycorrhiza B) Fungi D) Lichens
Q.204 The gymnosperms are called ‘Naked Seeded’ plants because they bear naked: A) Antheridia C) Fruits B) Ovules D) Archegonia
Q.205 The integumented indehiscent mega sporangium is called: A) Seed C) Archegonium B) Megagametophyte D) Ovule
Q.206 Pulses are present in the family: A) Caesalpinlaceae C) Gramineae B) Fabaceae D) Mimosaceae
Q.207 It is an endoparasite of humans, cattle and pig that completes its life cycle in two hosts: A) Tapeworm C) Liver fluke B) Aurelia D) Planaria
Q.208 Tse-tse fly causes the sleeping sickness and skin diseases by transmitting: A) Plasmodium C) Anopheles B) Trypanosoma D) Insects
Q.209 Coelem is a cavity lined by: A) Mesoderm C) Epiderm B) Endoderm D) Ectoderm
Page 18 of 18 Q.210 Which of the following molecules is reduced by accepting hydrogen in Calvin Cycle? A) Glyceraldehyde-3-phosphate C) 3-Phosphoglycerate B) Ribulose bisphosphate D) 1,3-Bisphosphoglycerate
Q.211 The molecule formed after first phosphorylation during glycolysis is: A) Fructose-6-phosphate C) Glucose-1-phosphate B) Fructose-1, 6-bisphosphate D) Glucose-6-phosphate
Q.212 Krebs Cycle in mitochondria takes place in: A) Cytosol C) Outer Membrane B) Matrix D) Inner Membrane
Q.213 At the junction between esophagus and the stomach there is a special ring of muscles called: A) Cardiac Sphincter C) Esophageal Sphincter B) Ileocolic Sphincter D) Pyloric Sphincter
Q.214 Hepatic and pancreatic secretions are also stimulated by a hormone called: A) Gastrin C) Insulin B) Secretin D) Glucagon
Q.215 Like pepsin, trypsin is also secreted as inactive trypsinogen, which is activated by: A) Enterokinase C) Chyme B) Lipase D) Erypsin
Q.216 During photorespiration, the glycolate is converted into glycine in a structure of cell called: A) Golgi Bodies C) Mitochondria B) Glyoxisome D) Peroxisome
Q.217 The respiratory pigment, which has much higher affinity to combine with oxygen, is: A) Myoglobin C) Haemoglobin B) Globin D) Hemocyanin
Q.218 Most of the carbon dioxide is carried in the blood in the form of: A) Bicarbonate C) CO2 B) Carboxyhemoglobin D) Blood plasma protein
Q.219 Antibiotics are actually: A) Globular proteins C) Fibrous proteins B) Glycoproteins D) Glycolipids
Q.220 Heparin prevents blood clots and is released by: A) Eosinophils C) Neutrophils B) Monocytes D) Basophils
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