1. The most ancient of the living birds is

Crow

Sparrow

Penguin

Ostrich

2. Which molecule has the greatest dipole moment

CH3I

CH3Br

CH3F

CH3CI

3. Which one of the following organelles shows high degree of polymorphism without

Peroxisomes

Lysosomes

Ribosomes

Mitochondria


4. Genetic variability is caused by

Mutation

Selection

Migration

Genetic drift

5. How many µ moles will be there in 100 µl of 0.lM of NaCI and CaCh solution? compromising with its function?

100 µ moles of NaCl and 200 J..1

100 µ moles of NaCl and 100 µ moles moles of CaCh of CaCh

10 µ moles of NaCI and 10 µ moles

10 µ moles ofNaCI and 20 µ moles of of CaCl2 CaCh

6. "Habitsform second nature" was quoted by

Kenneth R. Miller

Jean Baptist Lamarck

Charles Darwin

alfred Russel Wallace

7. Which one of the following statement is false about propane

The compound is combustible

Each carbon is Sp3 hybridized

The compound undergoes

all bond angles are 109.5° polymerisation to gIve polypropylene

8. Which one of the following is a correct food chain?

Phytoplanton zooplankton fish bird

Fallen leaves bacteria insect

Zooplankton nekton phytoplankton fish

Grass insect snake fox

9. Which of the hydrocarbons has acidic hydrogens?

1-Butyne

1-Butene

2-Butene

2-Butyne

10. The hormones epinephrine and glucagon are involved in the regulation of the following pathways

activates gluconeogenesis and

Inhibits gluconeogenesis and activates glycogenesis glycolysis

activates gluconeogenesis and

activates glycogenesis and glycolysis inhibits glycolysis

11. Which of the following compounds react fastest with Lucas reagent?

1-proponol

2-methyl-2-proponol

2-methyl-l-propanol

2-propanol

12. Histones have high content of amino acids such as

arginine and lysine

Tryptophan and leucine

Glutamine and asparagine

Phenyl alanine and histidine

13. Which one of the following statistical test is not a non-parametric test?

Kruskal-Wallis

Student

Mann-Whitney

Wilcoxon

14. Which of the following do not have skin that is impermeable to water?

Mammals

Birds

amphibians

Reptiles

15. The compound with lowest boiling point is

CH3CH2CH3

CH30CH3

CH3CH20H

H20

16. The co-enzymes FMN and FaD are derived from vitamin

C

B6

Bl

B2

17. The best example of a man made ecosystem is

Hebarium

acquarium

animarium

Forest

18. Which one of the following is a hemochorial organ?

Uterus

Placenta

Prostate

Vagina

19. Biodiversity

Increases towards the equator

Decreases towards the equator

Remains the same throughout the

Has no effect on change in latitude planet

20. The X-ray diffraction studies that led to the discovery of the structure of DNa was conducted by

McClintock

Franklin

Meselson and Stahl

Chargaff

21. In ruminents mineral absorption takes place largely in

Small intestine

Large intestine

Omasum

abomasum

22. Translation of protein in prokaryotes can be inhibited by

Pencillin

Puromycin

p-amino salicylic acid

Methicillin

23. When LG is negative the reaction is

Endergonic

Exergonic

Catabolic

anabolic

24. Myelination of neurons in the peripheral nervous system is provided by

Microglia

Oligodendroglia

Satellite cells

Schwann cells

25. Extraembryonic membrane that stores urinary waste and helps in mediating gas exchange is known as

amnion

allantois

Choriovitelline

Yolk sac

26. Glycogen is received in blood circulation from all tissues except

adipose

Muscle

Liver

Pancreas

27. Keto-enol tautomerism is shown by

Benzaldehyde

acetic acid

Benzophenone

acetone

28. Cold adapted bacteria growing at temperatures below -15°C and +10°C are called

Thermophiles

Halophiles

Psychrophiles

Capnophiles

29. Which is not intensive property?

Boiling point

Volume

Molarity

Refractive index

30. Which of the following is a form of sexual reproduction?

Budding

Fission

Hermaphroditism

Regeneration

31. Which has maximum entropy of vapourisation?

Toulene

Diethyl ether

acetone

Water

32. Winter bottom syndrome is caused by

Leishmania donovani

Trypanosoma brucei

Taenia solium

ancylostoma duodenale

33. Restriction endonucleases used in recombinant DNa technology is obtained generally from

Bacteria

Bacteriophage

Yeast

Virus

34. The abiotic components are almost similar in

Grassland and microbial

acquatic and terrestrial ecosystems ecosystems

Grassland and pond ecosystems

Terrestrial and wet land ecosystems

35. The number of bones present in human body is

206

215

225

230

36. Identify the food chain shown below: Dead animal Fly maggots Toad Snake

Detrital food chain

Decomposer food chain

Grazing food chain

Predator food chain

37. Transcription by RNa polymerase in E. coli requires the following except

Primnow box

Sigma factor

Rho factor

Concensus sequence at -35 position

38. Molecular interaction between molecules is in order

solid<gas<liquid

solid<liquid<gas

liquid<solid<gas

gas<liquid<solid

39. albinos have visual problem in bright light because they lack

Melanin

Rods

Cones

Pupil

40. Organs where similarity arises from being derived from a common ancestral structures are called

analogous

autologous

Homologous

Orthologous

41. Conjugate acid of HF2- is HF, F2­

42. Evolutinary theory of population genetics includes all except

Random mating

No genotypes have selective advantage over another

No influx of genes from other

The size of the population needs to be populations small

43. Humoral immunity was discovered

by Robert Koch

Paul Ehrlich

Jules Bordet

Edward Jenner

44. a 100ml of 1M of monobasic acid is neutralized by Ca(OH)2 at the equivalence point pH.

6

4.5

7

9.5

45. Rate of photosynthesis is highest in

Red light

Blue light

Yellow light

White light

46. The Tyndall effect is not observed in

Colloidal solution

True solution

Emulsion

Suspension

47. Which one of the following belongs to "living fossils"?

Pinus

Ginkgo

Riccia

Gnetum

48. Smoke is a dispersion of

Solid in gas

Gas in solid

Liquid in gas

Gas in gas

49. Which one of the following is generally not considered as a potential bioweapon?

Yersinia pestis

Bacillus anthracis

Streptococcus pyogenes

Clostridium botulinum

50. Epsom salt is chemically known as

Calcium sulphate

Copper sulphate

Ferrous sulphate

Magnesium sulphate

51. The cell membrane is selectively permeable to ions and organic molecules and controls the movement of substances in and out of cells. It consists of the phospholipid bilayer with embedded proteins. The phospholipids in this bilayer have a polar head group and non­polar tail. The polar head in these phospholipids is made up of

a phosphate and an alcohol

an alcohol and a fatty acid

Fatty acid and phosphate

Fatty acids only

52. Primary lymphoid organs include

Thymus and spleen

Thymus and bone marrow

Thymus, bone marrow and spleen

Bone marrow and lymphnodes

53. Natural rubber is polymer derived from

Ethylene

Butadiene

Isoprene

Propylene

54. Which one of the following plant is used for green manuring in India?

Corn

Wheat

Sunflower

Sunhemp

55. Which one of the following is transparent?

Tendon

Hyaline cartilage

Fibrous catilage

Fibrous muscle

56. Starch and cellulose are two very similar polymers. They both are made from the same monomer, glucose and have the same glucose-based repeat units. The main difference between the two is

Starch is a polymer of D-glucose

Starch is a linear polymer of D­ units while cellulose is a polymer of glucose units while cellulose is a L-glucose units branched polymer ofD-glucose units

Starch consists of alpha 1-4

Starch consists of alpha 1-4 and 1-6 glycosidic linkages while cellulose glycosidic linkages while cellulose has both alphal-4 and 1-6 linkages has only beta 1-4 linkages.

57. When an animal population produced a substance harmful to competing population, the interaction is known as

allelopathy

antibiosis

Interference

Pathogenesis

58. Correct order of geological time scale is

Paleozoic mesozoic coenozoic

Coenozoic paleozoic arachaezoic

Mesozoic arachaezoic coenozoic

arachaezoic mesozoic paleozoic

59. Trypsinogen is converted into active trypsin by

Enterokinase

Secretin

Ptylin

Enterocrinin

60. Identify the odd combination of the habitat and particular animal concerned

Sunderban-Royal Bengal Tiger

Periyar-elephant

Rann of Kutch-wild ass

Dachigam national park-snow leopard

61. The succinate dehydrogenase is located in one the following compartments of animal cell

Cytosol

Ribosomes

Endoplasmic reticulum

Mitochondria

62. Mammary gland without teats are found in

Prototheria

Metatheria

Eutheria

Metatheria and Eutheria

63. Cyanide blocks the electron transport chain at

Cytochrome-b

Cytochrome a+a3

Cytochrome-c

Ubiquinone

64. Bauxite is an ore of

aluminium

Copper

Iron

Zinc

65. Notochord is derived from

Neural ectoderm

Epidermal ectoderm

Mesoderm

Endoderm

66. Which one of the following has maximum density?

Benzene

Chloroform

Water

Xylene

67. The following amino acids are both ketogenic and glucogenic

Leucine and lysine

Tyrosine and tryptophan

Isoleucine and leucine

Lysine and glycine

68. In tuberculosis, the pathogen resides in

RBCs

Macrophages

Basophils

Mast cells

69. Mammals arose from the

Pelycasaurs

Therapsid

Thecodonts

Dinosaurs

70. IgE levels are notably high in

Tuberclosis

Helminth infections

Vibrio cholera infections

Diptheria

71. Which one of the following is known as artificial silk?

Nylon

Rayon

Terylene

Tasar

72. The Michaelis contant Km is

Numerically equal to Yz Vmax

Dependent on enzyme concentration

Independent of pH

Numerically equal to the substrate concentration that gives half maximal velocity

73. Lamin proteins are present in which compartment of the cell?

Mitochondria

Chloroplast

Nucleus

Endoplasmic reticulum

74. Larva of sponge is known as

amphiblastula

Glochidium

Planula

.Trochophore

75. The vitamin that is essential for blood clotting a m B

76. In individuals with Down's syndrome, all cells contain chromosomes







45

77. Which one of the following is non-myelinated nerve fibre?

autonomic nerve

Optic nerve

Cranial nerve

Spinal nerve I

78. Next to rodents, the largest order of mammals belongs to

Carnivores

Insectivores

Bats

Primates

79. a lL flask contains 32g O2 gas at 27°C. What mass of O2 must be released to reduce the pressure in the flask to-12.315 atm?



(b)24g



(D)16g

80. an allele is

Synonym of gene

a homozygous genotype

a heterozygous genotype

One of the several possible forms of the gene

81. The nitrogenous waste which is primarily excreted in cockroach is

Urea

Uric acid

ammonia

ammonia and urea

82. Relaxin is secreted from

Pituitary

Ovary

Testis

adrenals

83. The membrane fluidity is normally high due to

Low proportion of cis unsaturated

High proportion of cis unsaturated fatty acids in the glycerophosphate fatty acids in the glycerophosphate molecules molecules

Low proportitm of trans unsaturated

High proportion of trans unsaturated fatty acids in the glycerophosphate fatty acids in the glycerophosphate molecules molecules

84. Which one of the following metabolite is not directly produced in the hexose monophosphate pathway?

Fructose 6 phosphate

Erythrose 4 phosphate

Dihydroxyacetone phosphate

Gluconolactone 6 phosphate

85. an aqueous solution has molality of 11.11. The mole fraction of solute in the solution is

0.60

0.40

0.167

0.833

86. During which phases of cell division the morphology of the chromosomes is best studied?

Telophase and anaphase

Prophase and anaphase

Metaphase and anaphase

Telophase and metaphase

87. Which one of the following is not a unique feature of the birds?

Four chambered heart

Hollow bones

Keeled breast bone

Constant direction of airflow through lungs

88. Threshold energy is also called

Potential energy

Kinetic energy

Sum of potential and kinetic energy

Work function

89. Ribosomes were first discovered by

Laveran

Palade

Grassi

Robert Brown

90. Which is not an autosomal dominant disorder?

Huntington chorea

Retinblastoma

Tay-sacs disease

Brachydactyly

91. Fats differ from waxes by virtue of having

a glycerol backbone

Longer fatty acids

Higher melting points

More unsaturatiap.

92. Pearl mother layer is known as

Prismatic layer

Periostracum

Nacre

Mantle

93. Which one of the cells provide mechanical support to plant body

Xylem cells

Phloem cells

Sclerenchyma cells

Parenchyma cells

94. Which one of the following has two unpaired electrons?

S,Fe

S,Si

Si,Mg

S,Mg

95. amphibians bearing the live young one's are found among the

Caecilians

Frogs

Toads

Salamanders

96. a frog"with body temperature of 25°C is transferred to an area with 15°C temperature. What will be its body temperature few hours after the transfer?

25°C

20°C

15°C

Fluctuates between 15°C and 25°C

97. How many aTP molecules are generated after oxidation of one molecule of NaDPH2 during electron transport?









98. In propene there are

6 σ bonds and 3 bonds

7 σ bonds and 2 bonds

8 σ bonds and 1 bond

7 σ bonds and 1 bond

99. Which of the following is a vertebrate animal?

Cray fish

Cuttle fish

Globe fish

Star fish

100. Tandem repeat variability in a DNa molecule is highly useful for

Production of monoclonal antibody

Stem cell culture

Recombinant DNa technology

DNa finger printing For rough work