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Q.1 Number of base pairs in human chromosomes :
(1) 3 ×10 9 (2) 3 ×10 7
(3) 6 ×10 8 (4) 6 × 107
Q.2 Total amount of CO2 fixed annually by plants :
() 7 × 1023 ton (2) 7 × 103 ton
(3) 7 ×1010 ton (4) 7 ×1011 ton
Q.3 Most stable pesticides :
(1) Organophosphates (2) Organochlorines
(3) Bordeaux mixture (4) Azaderectnin
Q.4 Best economic method to harvest the solar energy :
(1) Solar cell
(2) Energy plantation
(3) Cultivation of sugar cane then energy obtain by burning it
(4) Solar cooker
Q.5 Main reason of disturbance of biological diversity :
(1) Green house effect
(2) Hunting
(3) Soil erosion
(4) Destruction of natural habitats
Q.6 Best method to preserve the wild relatives of plants :
(1) By growing them in natural habitats
(2) Gene library
(3) By storing seeds
(4) Cryopreservation
Q.7 Practical purpose of taxonomy or classification :
(1) Facilitate the identification of unknown species
(2) Explain the origin of organisms
(3) To know the evolutionary history
(4) Identification of medicinal plants
Q.8 Koch’s postulates not applicable to :
(1) Mycobacterium leprae
(2) Tuberculosis
(3) Pneumonia
(4) Cholera
Q.9 Amount of cellular DNA increases during :
() Cytokinesis (2) Fertilisation
(3) Mutation (4) Respiration
Q.10 Initiation codon in eukaryotes :
(1) UGA (2) CCA
(3) AGA (4) AUG
Q.11 Transition of exarch bundles of root to endarch bundles of stem occurs in:
(1) Epicotyl (2) Hypocotyl
(3) Apical bud (4) Coleoptile
Q.12 Which induces the development of corpus Luteum :
(1) LH (2) Oestrogen
(3) FSH (4) LTH
Q.13 Plant pathogenic bacteria are mostly :
(1) Gram + Non spore forming
(2) Gram – Non spore forming
(3) Gram + spore forming
(4) Gram (–) spore forming
Q.14 First transgenic plant :
(1) Potato (2) Tomato
(3) Tobacco (4) Maize
Q.15 Dolly sheep was obtained by :
(1) Cloning the udder cell (somatic cell) fused with unnucleated oocyte
(2) Cloning of gametes
(3) Tissue culture
(4) None
Q.16 CCK and secretin secreted by :
(1) Stomach (2) Ileum
(3) Duodenum (4) Colon
Q.17 Suspensory ligaments are found in :
(1) Brain (2) Eyes
(3) Liver (4) Pancrease
Q.18 Life span of worker honey bee :
() 30 days (2) 5 days
(3) 90 days (4) days
Q.19 Para thormone deficiency leads to :
(1) Decrease of Ca+2 level in blood
(2) Increase of Ca+2 level in blood
(3) Osteoporosis
(4) Hypercalemia
Q.20 Gene composed of :
(1) Amino acids (2) Polynucleotide
(3) Fatty acid (4) Nitrogen bases
Q.21 Ornithophilly takes place in :
(1) Yellow flower having nectaries
(2) Scented flower
(3) Flower with charming colour
(4) Modified corolla tube
Q.22 Bhopal gas tragedy is related with :
(1) Methane
(2) Carbon mono oxide
(3) Methyl Iso cyanate (MIC)
(4) SO2
Q.23 Concentration of DDT is highest in :
(1) Primary consumer
(2) Producers
(3) Top consumer
(4) Decomposers
Q.24 Percentage energy transferred to higher tropic level in food chain is :
(1) 1% (2) % (3) 90% (4) 0%
Q.25 What change occurs by changing one base in DNA :
(1) Always a change of one amino acid in protein
(2) Change in complex sequence of amino acid
(3) Always a change in property of protein
(4) Does not necessarily change the phenotype
Q.26 HIV infects :
(1) RBC (2) T – helper cells
(3) B – cells (4) Basophils
Q.27 Which of the following statement is true for bryophyta –
(1) Along with water absorption roots also provide anchorment to plants
(2) Sporophyte is dominant
(3) Gametophyte is dominant and sporophyte is mostly parasitic
(4) Gametophyte is parasitic
Q.28 Lichens can be used as :
(1) Bio-indicator for water and air pollution
(2) Initial vegetation for waste lands
(3) Source of wood
(4) To check the air pollution
Q.29 Biotic and abiotic components form :
(1) Community (2) Society
(3) Population (4) Species
Q.30 Endosperm in Gymnosperm is :
(1) Polyploid (2) Diploid
(3) Triploid (4) Haploid
Q.31 The plant having the largest flower is :
(1) Total stem parasite
(2) Epiphyte
(3) Total root parasite
(4) Partial stem parasite
Q.32 Anabaena is associated with Azolla’s :
(1) Stem (2) Leaves
(3) Roots (4) Flowers
Q.33 The allele for tallness is dominant over that of dwarfness. This is called :
() Law of independent assortment
(2) Law of segregation
(3) Law of unit character
(4) Law of dominance
Q.34 Oxytocin mainly helps in :
(1) Milk production (2) Child birth
(3) Diuresis (4) Gametogenesis
Q.35 What ratio is expected in offsprings if father is colour blind and mother’s father was colour blind:
(1) 50% daughter – colour blind
(2) All the sons are colour blind
(3) All the daughters colour blind
(4) All the sons are normal
Q.36 When AABBcc is crossed with AaBbCc then the ratio of hybrid for all the three genes is :
(1) 1/8 (2) 1/4
(3) 1/6 (4) 1/32
Q.37 Which hormone is concerned with the concentration of urine :
() Oxytocin (2) Vassopressin
(3) Prolactin (4) Cortisol
Q.38 Ventricular contraction in command of :
(1) S.A. Node
(2) A.V. Node
(3) Purkinje fibers
(4) Papillary muscles
Q.39 Which of the following does not contain metal :
(1) Glycoproteins
(2) Ferritin
(3) Cytochromes
(4) Chromoproteins
Q.40 Double unit membrane is absent in :
(1) Ribosomes
(2) Nucleus
(3) Plastids
(4) E.R.
Q.41 Function of Nucleases :
(1) Break the polynucleotide chain by breaking the each terminal nucleotide
(2) Breaks phosphodiester bond
(3) Breaks peptide bonds
(4) Breaks ester bonds
Q.42 What is phytotron :
(1) A device to grow the plants in controlled environment
(2) Growing plants in green house
(3) Radiation chamber to induce the mutations
(4) Apparatus to study the effect of light on plants
Q.43 Species diversity is maximum in :
(1) Tropical rain forest (2) Temperate forest
(3) Deserts (4) Hill slops
Q.44 Exponential growth is shown by :
(1) Unicellular forms (2) A cell in tissue culture
(3) Embryo (4) Multicellular plants
Q.45 Which of the following is secondary pollutant
(1) PAN (2) CO
(3) NO2 (4) SO2
Q.46 According to forestery commission report 997 the total forest cover of India :
(1) % (2) 9.5%
(3) 7% (4) 8.7%
Q.47 During injury mast cells secrete :
(1) Histamine (2) Heparin
(3) Prothrombin (4) Antibodies
Q.48 Nitrogen fixing bacteria converts :
(1) N2 → NH3 (2) NH4+ → Nitrates
(3) NO2 → NO3 (4) NO3 → N2
Q.49 Insulin differs from Growth hormone in :
(1) Increases activity of m-RNA and Ribosomes
(2) Increase the permeability of cell membrane
(3) Affects metabolism of fats by inducing lipogenesis
(4) Increasing protein synthesis
Q.50 Homologous organs are :
(1) Wings of cockroach and wings of bats
(2) Wings of insects and wings of birds
(3) Air bladder of fishes and lungs of frog
(4) Pectoral fins of fishes and forelimbs of horse
Q.51 Which arrangement is in correct ascending order:
(1) Species < genus < order < family
(2) Genus < species < family < order
(3) Order < family < genus < species
(4) Species < genus < family < order
Q.52 In stomach after physical and chemical digestion food is called :
(1) Chyme (2) Chyle
(3) Amino acid (4) Bolus
Q.53 Exchange of bicarbonates and chloride ions between RBC and plasma is called :
(1) Chloride shift
(2) Bohr’s effect
(3) Haldane’s effect
(4) Intra cellular respiration
Q.54 Which gland decreases in size with increasing age :
(1) Thyroid (2) Adrenal
(3) Thymus (4) Pituitory
Q.55 Which of following occurs in maximum concentration in blood plasma (ECF) :
(1) K+ (2) Mg+2
(3) Ca+2 (4) Na+
Q.56 Large scale death of fishes occur in :
(1) Saline lake (2) Oligotrophic lake
(3) Eutrophic lake (4) Shallow lake
Q.57 A normal human being requires how much calories per day :
(1) 2500 k. cal (2) 4000 k. cal
(3) 5000 k. cal (4) 686 k. cal
Q.58 Which of the following yield maximum energy :
(1) By glycolysis in a sprinter
(2) Aerobic respiration in germinating seeds
(3) Fermentation by yeast
(4) Anaerobic respiration
Q.59 Main reason of water bloom in rivers, lakes, sea etc. is :
(1) Brown algae and green algae
(2) Cyanobacteria and dinoflagellates
(3) Eicchornia
(4) Fishes
Q.60 Insectivorous plants grow in the soil which is deficient in :
(1) Mg (2) Ca
(3) P (4) N
Q.61 Which pair is of insectivorous plants :
(1) Drosera and Vallisneria
(2) Utricularia and Hydrilla
(3) Allobandra and Utricularia
(4) Rafflesia and Dionea
Q.62 What shall be the water potential of a root hair cell absorbing water from the soil :
(1) Zero (2) Less than zero
(3) More than zero (4) Infinite
Q.63 Deficiency of oxygen affects most the :
(1) Brain (2) Skin
(3) Kidney (4) Intestine
Q.64 Maximum DDT in birds feeding on :
(1) Fishes (2) Meat
(3) Insects (4) Seeds
Q.65 Fully digested food reaches to liver by :
(1) Hepatic portal vein (2) Hepatic artery
(3) Hepatic vein (4) All the above
Q.66 Fraternal twin one baby is haemophilic while baby’s brother is normal then which statement is true :
(1) Baby is male
(2) Baby is female
(3) Mother is heterozygous
(4) Mother is homozygous
Q.67 Which one is associated with occupational hazard is :
(1) Flurosis (2) Pneumoconieosis
(3) Silicosis (4) Asthma
Q.68 Azolla is used in the cultivation of :
(1) Maize (2) Sorghum
(3) Wheat (4) Rice
Q.69 Which one produce gas by decomposing the gobar (Dung) in gobar gas :
(1) Fungus
(2) Virus
(3) Methanogenic bacteria
(4) Algae
Q.70 Pantothenic acid & Biotin associated with :
(1) Vitamin D (2) Vitamin B complex
(3) Vitamin K (4) Vitamin E
Q.71 Which one is wrong pair :
(1) Scurvy – Vitamin C
(2) Rickets – Vitamin D
(3) Night blindness (Xerophthalmia) – Vitamin A
(4) Beriberi – Vitamin K
Q.72 Maximum photosynthesis takes place by :
(1) Phytoplankton (2) Zooplankton
(3) Marsh plants (4) Woody plants
Q.73 Reptiles like mammals originated in :
(1) Jurassic (2) Triassic
(3) Cretaseus (4) Permian
Q.74 Dental formula of adolescent human being before seventeen year :
(1) 
(2) 
(3) 
(4) 
Q.75 Molecular weight of DNA in yeast is :
(1) 2.56 ×10 9 (2) 0.5 ×10 9
(3) 7 × 107 (4) 6 ×10 6
Q.76 Minute quantity of hormones & steroid are detected by :
(1) Electrophoresis
(2) Radio immunoassay
(3) Electro encephalogram
(4) Fractional analysis
Q.77 Hybridoma is :
(1) Collection of DNA from DNA
(2) Collection of RNA from DNA
(3) A fusion of tumour sex cell with non tumour sex cell
(4) A fusion of tumour somatic cell with non tumour somatic cell
Q.78 Which substance can be used as male contraceptive in future :
(1) FSH (2) LH
(3) Testosterone (4) Progesterone
Q.79 Genetic material of prokaryotic cell :
(1) Non histonic double stranded DNA
(2) Histonic double stranded DNA
(3) Histone & DNA both are absent
(4) Histone without DNA
Q.80 Ligament consist of :
(1) Yellow fibres + Elastic fibres
(2) Yellow fibres + Collagen (white) fibres
(3) Yellow fibres + Muscle fibres
(4) White fibres + Muscle fibres
Q.81 Tendon consist of :
(1) Non Elastic connective tissue
(2) White Elastic tissue
(3) Collagen (white) fibres + Muscle fibres
(4) Only collagen fibres
Q.82 Industrial melanism is example of :
(1) Natural selection (2) Mutation
(3) Racial difference (4) Predation
Q.83 Casparian bands are found in :
(1) Endodermis (2) Pericycle
(3) Periderm (4) Cortex
Q.84 Funaria’s male gametes are :
(1) Poly flagellate (2) Mono flagellate
(3) Biflagellate (4) Tetra flagellate
Q.85 E. coli are used in production of :
(1) Rifampicin (2) LH
(3) Ecdyson (4) Interferon
Q.86 Which one is obtained by S. Miller in his experiments on origin of life before 953 :
(1) Simple sugars (2) Amino acids
(3) Nucleotide (4) Peptides
Q.87 Which protein found in maximum amount :
(1) Catalase
(2) Zinc carbonic anhydrase
(3) Transferase
(4) RUBISCO
Q.88 After ovulation follicles converted into :
(1) Corpus luteum (2) Corpus albicans
(3) Corpus cavernosa (4) Corpus calosum
Q.89 Minor change in gene’s structure is called :
(1) Reversible mutation
(2) Point mutation
(3) Forward mutation
(4) Back ward mutation
Q.90 Green house effect is :
(1) Gardening outside the house
(2) Global cooling
(3) Global warming
(4) Green colour house
Q.91 What will be happen if the number of organism increased at a place :
(1) Inter species competition
(2) Intra species competition
(3) Both
(4) None
Q.92 What is vaccine :
(1) Treated bacteria, virus & protein
(2) Treated algae
(3) Treated fungi
(4) Treated plasmodium
Q.93 Shell of egg in bird becomes thin (not properly formed) due to the pollution of pesticides. This is due to interference in the activity of :
(1) Ca ATPase (2) Mg ATPase
(3) Calmodulin (4) None
Q.94 Agglutination occurs in blood present in a test tube. This indicate :
(1) Antibodies are present in plasma
(2) Antigens are present on R.B.C.
(3) Antigens are present in plasma
(4) Antibodies are present on R.B.C.
Q.95 Secondary structure of protein, which is attached to lipid layer and lining the pores of cell membrane will be :
(1) α-Helix (2) β-Strand
(3) β-Chain (4) Random
Q.96 Recently extinct animal from India is :
(1) Acinonyx
(2) Rhinoceros unicornieus
(3) Panthera leo
(4) Panthera tigris
Q.97 Simplest reflex action in human is :
(1) Mono synaptic (2) Bi synaptic
(3) Tri synaptic (4) Poly synaptic
Q.98 In inducible operon, regulatory gene synthesize:
(1) Promoter (2) Operator
(3) Repressor (4) Aporepressor
Q.99 Neuroglial cells associated with :
(1) Heart (2) Kidney
(3) Brain (4) Eyes
Q.100 Diatomaceous earth is used as heat insulator in boilers and steam pipes because the cell wall of diatom :
(1) Composed of iron
(2) Composed of silicon dioxide
(3) Is conductor of heat
(4) Is bad conductor of electricity