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Q.1 If Mendel might have studied 7 pairs of characters in a plant with 12 chromosomes instead of 14 then :
(1) He could not discovered independent assortment
(2) He might have discovered linkage
(3) He might have discovered crossing over
(4) He might have not observed dominance
Q.2 Contraction in gall bladder stimulated by :
(1) CCK (2) PZ (3) Secretin (4) Enterogastrin
Q.3 Water is essential for bryophyta :
(1) For fertilization and homosporos nature
(2) Water should be filled in archegonium for fertilization
(3) Water is necessary for movement of sperm
(4) For dissemination of spores
Q.4 Which of the following yields citric acid :
(1) Penicillium citricum
(2) Aspergillus niger
(3) Saccharomyces
(4) Azospirilium
Q.5 Saccharomyces cerevissae is used in the formation of :
(1) Ethanol (2) Methanol (3) Acetic acid (4) Antibiotics
Q.6 AA Bb Cc genotypes form how many types of gametes :
(1) 4 (2) 8 (3) 2 (4) 6
Q.7 Indicator of water pollution :
(1) E. Coli (2) Chlorella (3) Beggiatoa (4) Ulothrix
Q.8 DNA of E.Coli :
(1) ds circular (2) ss circular (3) ds Linear (4) ss Linear
Q.9 Nucleic acid in HIV :
(1) ss RNA (2) ds RNA (3) ss DNA (4) ds DNA
Q.10 Knife of DNA :
(1) DNA–ligase
(2) Restriction endonuclease
(3) Exonuclease
(4) Peptidase
Q.11 Genetic engineering involves :
(1) Use of restriction endonuclease on bacterial DNA and formation of new traits
(2) Use of Ligase for cutting DNA
(3) Developing instruments
(4) Use of statistic in genetics
Q.12 Which is wrong for cytochrome P–450
(1) It contains Fe
(2) It concern with oxidation
(3) It is a pigment
(4) It is a coloured cell
Q.13 Enamel of teeth is secreted by :
(1) Ameloblast (2) Odontoblast (3) Osteoblast (4) Osteoclast
Q.14 If a female having gene for haemophilia and colour-blindness on its one X-chromosome marries a normal male then what are the chances in their offsprings :
(1) 50% son diseased and 50% normal
(2) All normal offsprings
(3) 100% daughters are carrier
(4) 100% son diseased
Q.15 First child of a normal male and female is albino, what are the chances of second child to be albino:
(1) 25% (2) 50% (3) 75% (4) 100%
Q.16 Species separated by geographical barriers are called :
(1) Allopatric (2) Sympatric (3) Sibling (4) Endemic
Q.17 Point mutation induced by :
(1) Adenine (2) Guanine (3) 3-cytosine (4) Bromouracil
Q.18 Reason for trisomy in down’s syndrome :
(1) Non disjunction during sperm formation
(2) Non disjunction during egg formation
(3) Non disjunction at the time of egg or sperm formation
(4) Addition of one extra chromosome during mitosis
Q.19 Multivalent chromosome form by :
(1) Inversion
(2) Deletion
(3) Reciprocal translocation
(4) Point mutation
Q.20 A cup have 105 bacterial cells. Each bacterial cell divides in 35 minutes. What shall be the number of bacteria after 175 min.
(1) 2 × 105 (2) 5 × 105
(3) 32 × 105 (4) 16 × 105
Q.21 Deficiency of protein leads to :
(1) Rickets (2) Scurvy (3) Kwashiorker (4) Carotenemia
Q.22 Lactose composed of :
(1) Glucose + galactose
(2) Glucose + fructose
(3) Glucose + glucose
(4) Glucose + mannose
Q.23 True statement for cellulose molecule :
(1) β–1–4 linkage, unbranched
(2) β–1–4 linkage, branched
(3) α–1–4 linkage, branched
(4) β–1–6 linkage, unbranched
Q.24 True statement for Ulothrix :
(1) Filamentous thallus and flagellated reproductive structures
(2) Branched thallus
(3) Flagellated cells absent
(4) None of the above
Q.25 Which of the following exercise a control over transcription :
(1) Operator (2) Regulator (3) Promoter (4) Recon
Q.26 Vitamin which induces maturation of R.B.C. :
(1) B1 (2) A (3) B12 (4) D
Q.27 Lower jaw composed of :
(1) Dentary (2) Maxilla (3) Premaxilla (4) Palatine
Q.28 Number of bones in hind limb of man :
(1) 14 (2) 24 (3) 26 (4) 30
Q.29 Which of the following stimulates the secretion of gastric juice :
(1) Gastrin (2) Enterogasterone (3) Secretin (4) Hepatocrinin
Q.30 Age of Dryopithecous :
(1) 2.46 crore years (2) 2.46 lakh year (3) 1 lakh year (4) 1 crore year
Q.31 Which of the following statement is true :
(1) Homo erectus is direct ancestor of Homo sapiens
(2) Neanderthal man is direct ancestor of modern man
(3) Australopithecous is direct ancestor of modern man
(4) Fossils of cromagnon man first found in Ethiopia
Q.32 Which statement is wrong for Cycas :
(1) Xylem have vessels
(2) Female flowers well developed
(3) It has coralloid roots
(4) Circinate ptyxis
Q.33 Evolution of heart from one to two, three and four chambered proves :
(1) Biogenetic law of Haeckel
(2) Lamarckism
(3) Hardy weinberg’s law
(4) Neo Darwinism
Q.34 What is necessary for ripening of fruits :
(1) 80% of ethylene (2) Abscissic acid (3) 2, 4 D (4) A.M.O. – 16
Q.35 Which of the following induces morphogenesis in tissue culture :
(1) Gibberline (2) Cytokinin (3) IAA (4) Ethylene
Q.36 Which weedicide can defoliate the complete forest :
(1) 2, 4-D (2) AMO–1618 (3) MH (4) ABA
Q.37 Heterosis (Hybrid vigour) desirable in vegetatively propagated plants because :
(1) Heterosis is maintained for a longer duration
(2) These plants are easy to cultivate
(3) Vegetative reproduction help to multiply fast
(4) It is due to homozygosity
Q.38 What is correct for stages of Puccinia :
(1) Telia and aecia on wheat
(2) Telia and uredo stage on wheat
(3) Telia and aecia on barberry
(4) None
Q.39 Typhoid caused by :
(1) Rickettssiae (2) Chlamydia
(3) Salmonella typhi (4) Mycobacterium
Q.40 Agent orange is :
(1) Biodegradable insecticide
(2) Di auxin (2–4,D and 2, 4, 5 T) weedicide
(3) Biofertilizer
(4) Biopesticide
Q.41 Largest sperm of :
(1) Pinus (2) Cycas (3) Ephedra (4) Sequoia
Q.42 Hollow air filled bones (pneumatic bones) occurs in :
(1) Mammals (2) Reptiles (3) Urodela (4) Aves
Q.43 Non–symbiotic nitrogen fixing bacteria :
(1) Rhizobium (2) Azospirilium (3) Azotobacter (4) Nitrosomonas
Q.44 Extrastelar secondary growth takes place by :
(1) Vascular cambium (2) Phellogen (3) Phellem (4) Phelloderm
Q.45 If CO2 is absent in atmosphere of earth then :
(1) Temperature will decrease
(2) Temperature will increase
(3) Plants will flourish well
(4) No effect
Q.46 Acacia, Prosopis and Capparis belongs to :
(1) Deciduous forest (2) Tropical forest
(3) Thorn forest (4) Evergreen forest
Q.47 Animals of desert are :
(1) Arboreal (2) Fossorial
(3) Crepuscular (4) Nocturnal
Q.48 Which part not have only involuntary muscles :
(1) Urethra (2) Irish (3) Heart muscles (4) Blood vessels
Q.49 Solenocytes occur in :
(1) Platyhelminthes (2) Arthropoda
(3) Annelida (4) Aschelminthes
Q.50 Which characteristic is true for Obelia :
(1) Metagenesis (2) Morphogenesis
(3) Apolysis (4) Pedogeny
Q.51 In angiosperm, characters of flowers are used in classification because :
(1) Characters of flowers are conservative
(2) Flowers are large
(3) Flowers are attractive
(4) None of the above
Q.52 Transport of gases in alveoli takes place by :
(1) Active transport (2) Passive transport
(3) Simple diffusion (4) None
Q.53 Oral contraceptives contain :
(1) Progesterone (2) LH (3) Oxytocin (4) Steroles
Q.54 In S–phase, DNA is replicated in a medium containing radioactive thymidine, radioactivity will be observed in :
(1) Euchromatin (2) Heterochromatin (3) Both (4) Nucleolus
Q.55 CO is harmful because :
(1) It forms stable compound with hemoglobin
(2) It blocks mitosis
(3) It is mutagenic
(4) It causes defoliation
Q.56 Function of thyrocalcitonin :
(1) To reduce the calcium level in blood
(2) To increase the calcium level in blood
(3) Oppose the action of thyroxine
(4) Maturation of gonads
Q.57 Osmotic potential and water potential of pure water respectively :
(1) 0 and 0 (2) 0 and 1 (3) 100 and 0 (4) 100 and 100
Q.58 A normal leaf cell have how many genomes :
(1) 1 (2) 2 (3) 3 (4) 4
Q.59 Contractile protein is :
(1) Actin (2) Myosin (3) Troponin (4) Tropomysin
Q.60 Unit of contraction :
(1) Sarcomere (2) Muscle fiber (3) Actin (4) None
Q.61 Oxidation of palmitic and yield :
(1) 129 ATP (2) 132 ATP (3) 36 ATP (4) 76 ATP
Q.62 Total amount of energy trapped by green plants in food is called :
(1) Gross primary production (2) Net primary production
(3) Standing crop (4) Standing state
Q.63 Role of microtubules :
(1) To help in cell division
(2) Cell membrane formation
(3) Respiration
(4) Pinocytosis
Q.64 Difference between eukaryotes and prokaryotes:
(1) ss circular DNA in prokaryotes
(2) Histone with prokaryotic DNA
(3) Operon in eukaryotes
(4) Membrane bound organelles in eukaryotes
Q.65 According to five kingdom system blue green algae belongs to :
(1) Metaphyta (2) Monera (3) Protista (4) Algae
Q.66 Bacteria are essential in carbon cycle as :
(1) Decomposer (2) Synthesizer
(3) Consumer (4) Pri. Producer
Q.67 What occurs in crossing over :
(1) Recombination
(2) Mutation
(3) Independent assortment
(4) None
Q.68 Histamine secreted by :
(1) Mast cells (2) Fibroblast (3) Histiocytes (4) Plasma cells
Q.69 Arterial blood pressure in human beings :
(1) 120 and 80 mm Hg (2) 150 and 100 mm Hg
(3) 50 and 100 mm Hg (4) None
Q.70 Which of the following survives a temperature of 104 to 106ºC :
(1) Marine Archaebacteria
(2) Hot water spring thermophiles
(3) Seeds of angiosperms
(4) Eubacteria
Q.71 Mental retardness in man occur due to :
(1) Loss of one X chromosome
(2) Addition of one X chromosome
(3) Slight growth in Y
(4) Overgrowth in Y
Q.72 Symptoms of Lathyrism :
(1) Bone deformation
(2) Muscular dystrophy and paralysis
(3) Asphyxia
(4) Cordiac arrest
Q.73 A cell ‘A’ with D.P.D. = 8 is surrounded by three cells ‘B’, ‘C’ and ‘D’ with D.P.D. respectively 4, 6 and 5. What shall be the direction of water movement :
(1) 
(2) A → B → C → D
(3) D → C → B ← A
(4) A → B ← C → D
Q.74 What change occurs during conversion of proto chlorophyll to chlorophyll :
(1) Addition of 2H in one pyrrole ring
(2) Loss of 2H
(3) Addition of Mg
(4) Loss of Mg
Q.75 Transduction in bacteria carried out by :
(1) Bacteriophage (2) B.G.A.
(3) Mycoplasma (4) Rickettsiae
Q.76 Which of the following most used in genetic engineering :
(1) E. coil and Agrobacterium
(2) Mycobacteria and Salmonella
(3) Aspergillus
(4) Penicillium
Q.77 Variations in proteins are due to :
(1) Sequence of amino acids
(2) Number of amino acids
(3) R–group
(4) None
Q.78 Genetic drift in mendelian population takes place in :
(1) Small population (2) Large population
(3) Oceanic population (4) Never occurs
Q.79 Embryo of sunflower have :
(1) Two cotyledons (2) One cotyledons
(3) Eight cotyledons (4) Cotyledons absent
Q.80 Effect of light and dark rhythm on plants :
(1) Photonasty (2) Phototropism
(3) Photoperiodism (4) Photomorphogenesis
Q.81 ABO blood group have :
(1) Two codominant and one recessive allele
(2) Two codominant and two recessive allele
(3) Two incompletely dominant genes
(4) Two pseudo alleles
Q.82 Walking fern name of Adiantum is due to :
(1) Dispersal by animals
(2) Reproduction by spores
(3) Vegetative reproduction
(4) Power of locomotion
Q.83 Modern farmer’s can increase the yield of Paddy upto 50% by the use of :
(1) Cyanobacteria
(2) Rhizobium
(3) Cyanobacteria in Azolla pinnata
(4) Farm yard manure
Q.84 Which destroys the acetyl choline esterase :
(1) Malathione (2) CO
(3) KCN (4) Colchicine
Q.85 Growth of leaf primordia :
(1) First apical then marginal
(2) Only apical
(3) Only marginal
(4) Lateral
Q.86 Reason for elimination of wild life is :
(1) Deforestation (2) Forest fire
(3) Floods (4) Less Rain fall
Q.87 Beside CH4 and CO2 other green house gas from agriculture area :
(1) SO2 (2) NH3 (3) NO2 (4) CFC
Q.88 In which biome a new plant may adapt soon :
(1) Tropical rain forest (2) Desert
(3) Mangroove (4) Sea island
Q.89 In present times the origin of life is not possible from inorganic compounds due to :
(1) Raw material not available
(2) High conc. Of O2 in atmosphere
(3) Decrease in temperature
(4) Excess of pollution
Q.90 On Galopagos island Darwin observed variation in beaks of birds (Darwin’s finches) and he concluded :
(1) Inter species variation
(2) Intraspecies variation
(3) Natural selection according to food
(4) Inheritance of acquired characters
Q.91 A male insect mistakes a flower of orchid to be its female due to shape and perform the act of copulation and induce pollination. This is an example of :
(1) Mimicry
(2) Pseudo copulation
(3) Pseudo pollination
(4) None
Q.92 Correct sequence of embryo development :
(1) Gamete → Zygote → Morula → Blastula → Gastrula
(2) Gamete → Zygote → Blastula → Morula → Gastrula
(3) Gamete → Neurula → Gastrula
(4) Gamete → Neurula → Morula
Q.93 Segments of DNA which can move in genome :
(1) Transposons (2) Introns
(3) Exons (4) Cistrons
Q.94 Botulism affects :
(1) Digestive system
(2) Blood vascular system
(3) Nervous system
(4) Respiratory system
Q.95 Temperature variation in Pacific ocean in present time is called :
(1) Cyclone effect
(2) Alnino effect
(3) Green house effect
(4) Gaudikov’s effect
Q.96 Sewage purification is performed by :
(1) Microbes (2) Fertilisers
(3) Antibiotics (4) Antiseptics
Q.97 Effect of anaesthetics on body :
(1) Inhibits Na–K pump
(2) Kills nerves
(3) Stops brain functions
(4) Inactivates skin cells
Q.98 Two opposite forces operate in the growth and development of every population. One of them related to the ability to reproduce at a given rate.
The force opposite to it is called :
(1) Fecundity
(2) Environmental resistances
(3) Biotic control
(4) Mortality
Q.99 Transfusion tissue is present in the leaves of :
(1) Pinus (2) Dryopteris
(3) Cycas (4) Both (1) and (3)
Q.100 The periderm includes :
(1) Secondary phloem (2) Cork
(3) Cambium (4) All of these