1. Pancreatic lipase acts upon

Glycogen

Triglycerides

Disaccharides

Polypeptides

2. The following phenomenon is an example of Mendellan inheritance

Imprinting

Obesity

Metastasis

Huntington chorea

3. Plants producing spore bearing seed without fruit and well developed vascular structure are

Pteridophyta

Gymnosperm

Angiosperm

Bryophyta

4. How many haploid cells are formed after two rounds of mitosis and one round of meiosis respectively?

4,4

8,4

0,4

8,0

5. Base hydrolysis of triglycerides is known as

Acetylation

Acidification

Esterification

Saponification

6. Nitrifying bacteria are example of

Photoautotrophs

Photoheterotrophs

Chemoautotrophs

Chemoheterotrophs

7. If crossover in one region of the chromosome affects the likelihood of another crossover event in an adjacent region of the chromosome, the phenomenon Is known as

Co-dominance

Chromosome linkage

interference

Chromosome conformation capture

8. Which of the following functional group series is ranked according to increasing boiling points?

Diethyl ether, ethane, ethanol, ethanethiol

Ethane, ethanol, diethyl ether, ethanethiol

Ethane, diethyl ether, ethanethiol, ethanol

Diethyl ether, ethane, ethanethiol, ethanol


9. Which one of the following statement is false with reference to contraction and relaxation of skeletal muscles?

Release of acetylcholine at motor end plate

Increased conductance at the end plate membrane

Generation of action potential in muscle fibers

Release of from sarcoplasmic reticulum

10. What would be the pH of 0.06M succinic acid solution taking into account both ionization. Ka1 7Xl0 power Ka2 3Xl0 power

2.9

3.9

4.9

5.9

11. A living mechanical tissue is

Parenchyma

Collenchyma

Chlorenchyma

Sclrenchyma

12. Pepsin of gastric juice (pH 1.5) has a pI of about 1. Which of the following amino acids must be present in large numbers to give pepsin this low pI

Arg and Lys

Asp and Gly

Ser and Thr

Gly and Ala

13. A bacterial toxin that causes cramps, diarrhea and nausea in gastric tract is called

Exotoxin

Endotoxin

Immunotoxin

Enterotoxin

14. For which of the following mixtures would steam distillation be the most appropriate method of separation?

Diethyl ether and water

Ethyl alcohol and water

Aniline and sodium chloride

Methanol and water


15. Allopurinol is used to treat gout. It acts by inhibiting

Xanthine oxidase

Hypoxanthine-guanine phosphoribosyl transferase

Adenosine deaminase

Urate oxidase

16. The specific absorption coefficient 1%1Cm) of glycogen-iodine complex at 450nm is 0.2. Calculate the concentration of glycogen in a solution of the iodine complex which has an absorption of 0.38 in a 3cm cuvette

0.633%

6.33%

0.0633%

63.3%

17. The prevention of growth or development of an organism by a substance released by another organism is called

Inhibition

Antibiosis

Repression

Biolistics

18. The formation of acetyl coenzyme A from pyruvic acid is the result of its

Reduction

Dehydration

Carboxylation

OXidative decarboxylation

19. Which of the following statements is correct regarding nucieophiles?

They have an overall positive

They have a lone pair of electron charge

They have an unpaired electron

They have empty orbitals

20. The placenta in humans is

Zonary placenta with eccentric implantation

Zonary placenta with superficial implantation

Discoidal placenta with interstitial implantation

Diffuse placenta with eccentric implantation

21. Which one of the following has the maximum number of unpaired electrons?

Mg2+

Ti3+

V3+

Fe2+

22. The enzyme that catalyzes the conversion of 2-phosphoglycerate phosphoenol pyruvate is

Enolase

Phosphofructokinase

Pyruvate decarboxylase

Pyruvate kinase

23. Which of the following statement is correct with reference to B form of DNA?

Consists of 10 minor and 10 major grooves per 100bp of DNA

Consists of 1 minor and 10 major grooves per 100bp of DNA

Consists of 10 minor and 1 major grooves per 100bp of DNA

Consists of 1 minor and 1 major groove per 100bp of DNA

24. Which of the following is most resistant to oxidation?

CH3CHOH

(CH3)2CHOH

HOCH2CH2OH

(CH3)3COH

25. Calculate the axial length of an oc-helix containing 78 amino acids

117°A

1.17°A

11.7°A

0.117°A

26. The percentage of human genome that codes for protein is

0-0.5%

0.5-1%

1-1.5%

1.5-2%

27. One mole of potassium chlorate is thermally decomposed and excess of aluminium is burnt in the gaseous product. How many moles of aluminium oxide are formed?

1

2

1.5

3

28. The method of vegetative culture is called

Pomology

Olericulture

Sylviculture

Arboriculture

29. Oxygen carrying capacity of chlorocruorin in the respiratory pigment of Annelids is associated with metallic ion

Fe

Cu

Zn

Ag

30. The filamentous DNA and protein that can be stained in interphase nuclei is

Solenoid

Extended nucleosome

Looped Solenoid

Chromatin

31. Hexokinase phosphorylates glucose. The phosphorylation process

Prevents escape of glucose from the cell

Promotes membrane transport

Accelerates its conversion fructose 6 phosphate into fructose 6 phosphate

Inhibits the conversion of glucose 6 phosphate to fructose 6 phosphate


32. Which of the following type of bonds/interactions contribute the least towards stabilizing the three dimensional folding of protein molecule?

Hydrophobic interactions

Hydrogen bonds

Disulphide bonds

Ester bonds

33. The characteristic reaction of carboxylic acids is

Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution


34. Cellular proteins tagged with ubiquitin undergo degradation in one of the following organelles

Phagosomes

Proteosomes

Endosomes

Lysosomes


35. Which of the following is a major unsaturated fatty acid present in corn, peanut and soybean oil?

Timnodonic

Elaidic

Linoleic

-Linolenic


36. The hormone for regulation of calcium and phosphate homeostasis is secreted by

Pituitary gland

Parathyroid gland

Thymus gland

Thyroid gland

37. A plant enzyme produced in response to infection by fungal pathogen which hydrolyses some components of the fungal cell wall is

Chitinase

beta-1,3 Glucanase

beta-1,6 Glucanase

cellulase

38. The strain of yeast that is used in beer production is

Pichia postoris

Saccharomyces cerevisiae

Saccharomyces diastaticus

Saccharopolyspora erythraea

39. Which of the histone is not a part of the nucleosome?

H1

H2A

H2B

H4

40. Which of the following organism is not recommended for production of recombinant therapeutics?

Saccharomyces cerevisiea

E.coli

Pseudomonas aeruginosa

Pichia pastoris

41. One of the following arthropods does not serve as a vector for transmission of Rickettsial disesse

Dermacentor

Pediculus

Xenopsylla

Culiseta

42. Following substrate capable of traversing blood brain barrier can be utilized by the brain to restore normal function during hypoglycemia

Sucrose

Lactose

Mannose

galactose


43. The factor that does not influence the heat of reaction is

The physical state of reactants and products

The temperature

The pressure or volume

The method by which the final products are obtained

44. Genetically induced dwarfness in plants can be overcome by treatment with

Ethylene

Auxin

ABA

Gibberellins

45. Isozymes are

Enzymes catalyzing same reaction with different physical properties

Enzymes catalyzing same reaction with identical physical properties

Enzymes catalyzing different reaction with different physical properties

Enzymes catalyzing different reactions with identical physical properties

46. A small protein that acts as an electron carrier

Thrombin

Thionin

Thioredoxin

Triazine

47. Rhizopus multiplies by the production of

Zoospores

Conidiospores

Sporangiospores

Chlamydospores

48. The triple helix model of DNA structure was proposed by

Watson and Crick

Rosalind Franklin

Linus Pauling

Erwln chargaff

49. Which of the following reactions can be used to prepare alkanes?

Corey-House synthesis

Williamson synthesis

Friedel-Crafts reactions

Feulgen synthesis

50. Embryonic stem cells are

Totipotent and have non-self renewal capacity

Pluripotent and have self renewal capacity

Multipotent and have non self renewal capacity

Multipotent and have self renewal capacity

51. Nephron is the structural and functional unit of kidney. Juxtamedullary nephrons are present in

Mammals

Reptiles

Birds

Fishes

52. A sample of DNA purified from Mycobacterium tuberclosis contains 15.1% adenine on a molar basis. What is the percentage of the Guanine present?

34.9%

15.1

68.1%

3.49


53. Lyme disease is caused by

yersinia pestis

Borrelia burgdorferi

Ehrlichia chaffeesis

Anaplasma phagocytophilum


54. Inter nucleosomal DNA is called

Linker DNA

Linear DNA

Junk DNA

Intergenic DNA


55. Crown gall disease in plants is caused by infection of

Scale insect

Agrobacterium

Fusarium

Rhizoctonia


56. A genetic mutation that changes a codon for one amino acid into a codon specifying for another amino acid is

Frameshift mutation

Missense mutation

Nonsense mutation

Point mutation


57. Coenzyme pyridoxal phosphate is derived from vitamin

C

B1

B6

B2

58. Homolytic fission of C-C bond leads to the formation of

Free radicals

Carbonium ions

Carbanions

Carbanion and Carbonium ions

59. Structures that have same evolutionary origin but differing with regard to structure and function are said to be

Analogous

Homologous

Heterologous

Contiguous

60. Enzyme found in saliva of animals is

Patatin

Ptyalin

Pepsin

Renin

61. The movement of masses of cells towards each other and their fusion into one cell mass is called

Convergence

Concrescence

Epiauxesis

Emboly

62. Which of is an inducer of lac

Lactose

Galactose

Allolactose

Glucose

63. An enzyme that selectively degrades single stranded DNA is

Endonuclease

Exonuclease

S1 nuclease

P1 nuclease

64. Total number of vertebra found in vertebral column of human is

A)18

33

38

42

65. The common name for Indian rose wood is

Acacia

Shorea

Dalbergia

Purpurea

66. How many different disaccharides are possible from D-galactopyranose and D-glucopyranose?

10

20

5

40

67. Which one of the following is not a hemoprotein?

Myoglobin

Cytochrome P450

Hemoglobin

Bilirubin oxldase

68. In humans the rectus femoris muscle is found in

Upper arm

Lower arm

Thigh

Elbow


69. Humans can digest starch and not cellulose. Both of them contain monomeric glucose- units. the Starch can be digested due to the specificities of the intestinal enzymes for

alpha 4 linkage

beta 4 linkage

alpha 6 linkage

beta 6 linkage

70. Transfer of electrons during photosynthesis occurs in a sequential manner. The correct order of this sequence is

P700->Plastoquinone Pheophytin (PE)->CytB6->Plastocyanin(PC)->P680->Ferridoxin







71. Example of genomic imprinting is

Prader-Willi syndrome

Down syndrome

Klinefelter syndrome

Turner syndrome

72. Which of the following is ketose?

Glycerose

Fructose

Ribose

Glucose

73. Which of the following eukaryotic DNA polymerase plays role in mitochondrial DNA synthesis?

alpha

beta

gaama

delta

74. The decline of reptiles and expansion of mammals is characteristic of

Mesozoic

paleozoic

Archaeozoic

coenozoic

75. Which of the following characteristics features is typical for enantiomers?

Rotate ordinary light

Have the same melting point

Are superimposable mirror images

React with the optically active molecules at the same rate

76. The germ theory of disease was developed by

Koch

Fleming

Van Leeuwenhoek

pasteur

77. Which of the following is not a rodent?

Mole rat

Porcupine

Guinea pig

Mangoose

78. In cold countries ethylene glycol is added to water in car radiators. This helps to

Reduce the viscosity

Make water a better lubricant

Lower the freezing point

Lower the boiling point


79. An extra embryonic membrane essential for gas exchange during embryonic development of amniotes is

Amnion

Allantois

Chorion

Yolksac

80. Which of the following sterilization methods does not kill endospores?

Autoclave

Hot air sterilsation

Pasteurisation

Dry air sterilisation

81. In glycolysis and citric acid cycle, the only dehydrogenase to use FAD as cofactor is

Isocitrate dehydrogenase

Succinate dehydrogenase

Pyruvate dehydrogenase

Malate dehydrogenase

82. Myelin producing cells in the central nervous system are

Oligodendrocytes

Schwann cells

Astrocytes

Ependymal cells


83. Following properties will decrease with increase in temperature except

Surface tension

Viscosity

Density

Vapour pressure

84. Which region is the most biologically diverse area on the planet?

Arctic tundra

Tropical rain forest

Coniferous forest

Prairie grassland


85. Relaxed plasmid is a

Plasmid found in open circle form

Plasmid found in Linear form

Low copy number plasmid

High copy number plasmid

86. The free energy change, deltaG:

Is directly proportional to the standard free energy change, deltaGO

Is equal to zero at equilibrium

Can only be calculated when the reactant and products are present at 1mol/L concentration

Is equal to -RT/nKeq


87. During embryonic development the Anti-Mullerian Factor or Anti-Mullerian Hormone(AMH) performs the following function

Prevents formation of vas efferens and vas deferens

Promotes formation of vas efferens and vas deferens

Prevents formation of oviducts and uterus

Promotes formation of oviducts and uterus


88. The appearance of silver mirror in Tollen's test indicates the presence of

An aldehyde

A ketone

An alcohol

An alkene

89. Compared to herbivores, carnivores intestine is generally

Longer

More convulted

Less convoluted

About the same size

90. Which of the following ecosystems is called as "Taiga"?

Boreal forest

Littoral forest

TroPical rain forest

Tundra

91. Laron syndrome is due to an autosomal recessive disorder occurring in consanguineous families and affected individuals are resistant to

Growth hormone

Melatonin

Prolactin

seratonin


92. A gas of pressure 5atm is heated from 0 degC to 546°C and simultaneously compressed to one-third of its original volume. Hence, final pressure is

10atm

30atm

45atm

5atm

93. Antibiotic puromycin inhibits protein synthesis by

Preventing amino acyl tRNA to the A site of the ribosome

Preventing the formation of covalent linkage between tRNA and amino acid

Binding to 30S subunit of the ribosome and preventing the process of elongation

Binding to elongation factor G

94. How many different aldohexose stereoisomer are possible excluding anomers?

24

16

8

4

95. An unicellular heterotroph has a nucleus, 70S ribosome but does not have golgi apparatus. Which one of the follOwing taxonomic classification best suits the description

Fungi

Eubacteria

Archezoa

Animalia

96. A lake rich in nutrients and algal species is classified as

Dystrophic

Oligotrophic

Eutrophic

Ectotrophic

97. In the absence of glycocholic acid and taurochollc acid, the intestinal absorption of all the following would be impeded except

Vitamin C

Oleic acid

Cholesterol

Vitamin A

98. Shingles is a disease caused by

Smallpox virus

Chickenpox virus

Adenovirus

Poliovirus

99. It is possible to distinguish between optical isomers

By using chemical test

By mass spectrometry

By IR spectroscopy

By polarimetry

100. Which is a part of blood buffer?

HCO3-, H2CO3

CO3-2-,HCO3-

CH3COOH,CH3COO-

SO4