1. The mode of arrangement of sepals or petals in floral bud with respect to the other members of the same whorl is known as aestivation. Find out the right order from the figure given below:

<img src='./qimages/16007-1.jpg'>

Valvate Twisted Imbricate Vexillary

Valvate Imbricate Twisted Vexillary

Valvate Twisted Imbricate Vexillary

Imbricate Vexillary Twisted Valvate

2. Sucker fish like Echeneis attaches to the underside of a shark by means of its sucker which is a modified dorsal fin located on its head. Name the association exhibited by these individuals wherein the former gets benefited by its association while the later is almost unaffected.

Parasitism

Commensalism

Symbiosis

Predatory

3. The main constituent of cuticle is which is made up of:

A mixture of phenylproponoids

A mixture of polysaccharides

Polymers of galacturonan molecules

A mixture of hydroxy fatty acids

4. Which of the following statements is not true for Hfr strains of Escherichia coli?

F factor is integrated in the genome

Chromosomal markers are transferred from donor to recipient

They act as donors in the cross

Progeny of the cross always becomes

5. When a flower can be divided into two radial halves in any radial plane passing through the center is called as:

Zygomorphic flower

Actinomorphic flower

Asymmetric flower

Pleomorphic flower

6. A researcher was conducting Widal test in his lab. For what purpose this test is conducted?

This test is conducted on Widal named paper to know the pH of human blood

This is a type of serological test to identify the typhoid causing bacteria in patient

This is a type of serological test to identify the type of heavy metal present in human blood

This is a type of serological test to identify the filarial parasite in the human blood

7. When benzaldehyde reacts with phenylhydrazine, the resulting compound is:

Bezaldehyde phenylhydrazone

Benzyl alcohol

Toluene

3-Phenylpropenal

8. The union of a hypha with another, resulting in intercommunication of their genetic material and this phenomenon is called:

Axotrophy

Ascogeny

Ascotromy

Anastomosis

9. The incorrect pair among the following is:

Cyanobacteria Primary producer

Grass hopper Primary consumer

Eagle Top carnivore

Zooplankton Secondary consumer

10. The Protein-Energy Malnutrition observed in infants and children resulting from simultaneous deficiencies of proteins and calories causes:

Jaundice

Gaucher's disease

Marasmus

Appendicitis

11. Match the following proteins with their biological role:

1. Albumin a. Blood clotting plasma protein

2. Fibrinogen b. Osmotic balance of blood

3. Globulin c. Blood anticoagulant

4. Heparin d. Antibodies in defense

1d, 2b, 3c, 4a

1b, 2a, 3d, 4c

1c, 2a, 3d, 4b

1b, 2a, 3c, 4d

12. In the common daisy, the genes A and Band b represent two pairs of alleles acting on flower color. A and B are both required for color. How many plants with colourless flowers will be found in the F2 of a cross between two colorless plants, one homozygous for A and the other homozygous for

4 in 16

6 in 16

7 in 16

9 in 16

13. In plants, molybdenum deficiency causes one of the following symptoms:

Necrosis and molting

Chlorosis

Wilting

Increase in length of internodes

14. What is the chemical nature of "Taurine"?

It is an amino sulfonic acid widely distributed in animal tissue

It is a compound which contain urea and toluene found in patient suffering from urinary tract infection

When mammalian urine contain heavy metal, it is called taurine

It is urea containing compound which is used as pesticide as well as fertilizers

15. An example of non-protein amino acid among the following:

Arginine

Canavanine

Hydroxyproline

Histidine

16. The mechanism by which resistance to a virulent strain of plant pathogenic virus is conferred by prior exposure of plants to a less or inactive form of the virus is called as:

Infestation

Cross protection

Crossing over

Incineration

17. Which of the following shows vestigial stomata?

Eichhornia

Nerium

Capparis

Hydrilla

18. Which one among the following is spliced out of a HnRNA?

1ntrons

Exons

Start codons

Stop codons

19. What is cyclostomata?

When open stomata looks like a cycle structure

It is the part of chloroplast which helps in transpiration in night

It is the name of a class in vertebrata division

It is the name of fish which emits light

20. A cross is made with Drosophila having genotype Ab/aB with another genotype ab/ab. If these genes are closely linked and there is no chance of crossing over occurring in this region, the resulting progeny would be:

All progeny will be phenotypically Ab

All progeny will be phenotypically aB

50% of the progeny will be phenotypically AB and 50% phenotypically ab

50% of the progeny will be phenotypically Ab and 50% phenotypically aB

21. Cystolith is made of one of the following:

Calcium oxalate

Calcium carbonate

Sodium hydroxide

Sodium chloride

22. Cobalt-60 radiation is generally used in pharmaceutical and animal husbandry sectors. For what purpose this radiation is used?

This radiation is used to treat retinal disorder in human and animals

This radiation is used for treating embryonic disorder in human and animal

This radiation is used for boosting immune system

This radiation is used for cold sterilization of antibiotics, homl0nes, medical equipment and pasteurize meat product

23. Sulfonamide or sulfa drugs are structurally related to sulfanilamide which is an analogue of:

p-Aminobenzoic acid

Folic acid

Cytosine

D-Alanyl-D-alanine

24. 'Sigatoka' disease of Banana and disease of Cardamum are caused respectively by:

A fungus and a virus

A virus and a viroid

A bacteria and fungus

A viroid and virus

25. Sickle cell anemia is a monogenic disorder that produces abnormal hemoglobin S resulting in sickling of erythrocytes. Which of the following is incorrect about sickle cell anemia?

Carriers of the sickle cell allele are resistant to malaria

Red blood cells carrying mutant hemoglobin become sickle shaped when deprived of oxygen

Individuals with two copies of the sickle cell gene have the disease

Individuals afflicted with sickle-cell anemia are two times more likely to be males than to be females PART-B

26. The rate of transpiration can be measured by:

Manometer

Photometer

Potometer

Auxanometer

27. The process by which glycogen is converted into glucose is known as:

Glucogenesis

Glycogenesis

Lipogenesis

Glycogenolysis

28. During mRNA processing which of the following is added to the end of the mRNA transcript?

7-Methyl guanosine cap

Series of adenine bases

lntrons

Ribosomes

29. Which of the following bacteriophages was used by Seymour Benzer for fine structure analysis of rII region?

P2 phages

T4 phages

M13 phages

Phages

30. Kranz anatomy is found in one of the following:

C3 plants

C4 plants

C2 plants

Succulent plants

31. The process of formation of the 'formed elements' of blood comprising of erythrocytes, leucocytes and platelets is called as:

Hematology

Serology

llaemopoiesis

Haemocentesis

32. Bordeaux mixture is used in vine yards to prevent downy mildew and powdery mildew is a mixture of:

Copper sulphate and slaked lime

Zink sulphate and slaked lime

Magnesium sulphate and common salt

Cupric sulphate and caustic soda

33. Cyclosporine which is used as a immune suppressive agent in organ transplant patients is isolated from:

Colletotrichum officinarum

Clostridium botilicum

Saccharomyces cervicia

Trichoderma polysporum

34. DCMU (Dichlorophenyl dimethyl urea) also called "Diuron" is a potent herbicide which kills plants by:

Inhibiting Calvin cycle

Inhibiting respiration

Inhibiting ofPS-I

Inhibiting ofPS-II

35. In some of the vertebrate the alimentary canal, urinary and reproductive tract open into a common chamber which opens into exterior. This chamber is known as:

Cloaca

Ureter

Cecum

Osculum

36. The membrane-bound organelle which detoxifies molecules such as hydrogen peroxide in the cell is:

Glyoxysome

Peroxisome

Liposome

Chromosome

37. All of the following statements are true of DNA mutations except one of the following:

Recessive mutations arise due to loss of function

Dominant mutations arise due to gain of function

Majority of the mutations are recessive in nature

Dominant mutations are not expressed in heterozygous condition but only in homozygous condition

38. Indole 3-acetic acid generally inhibits growth in one of the following plant parts:

Roots

Leaves

Stern

Flower bud

39. Which of the following causes Kala-azar in man?

Leishmania donovani

Taenia solium

Entamoeba histolytica

Fasciola hepatica

40. Select the molecule which has only one n bond:

CH=CH

CH3CH CH2

CH3CH CHCOOH

CH2 CHCRO

41. A fungus which grows on bread obtains its food by:

Photosynthesis

Making its own food out of inorganic ions

Secreting enzymes into bread

Engulfing bread particles

42. Colchicine, a chemical mutagen, is obtained from which part of Colchicum autumnale?

Rhizome

Succulent leaves

Bulb

Com

43. A special characteristic feature of cnidarians comprising of jelly fish and corals, is the occurrence of:

Polymorphism

Haemotocysts

Hennaphroditism

Nematocysts

44. The generation of carbon dioxide during respiration takes place in:

Cytoplasm

Nucleus

Mitochondrion

Vacuole

45. Which one of the following is used in the reclamation of alkaline soils?

Rhizobia

Selaginella rupestris

Blue green algae

Diatoms

46. In nature, phenotypic variability is essentially continuous because of all the reasons listed below except:

Each genotype produces a discrete phenotype without being affected by environmental variability

Many genes contribute to a given phenotype

Environmental variability affects phenotype

There is phenotypic overlap between different genotypes

47. Identify an anamniote among the following:

Fish

Reptiles

Aves

Mammals

48. X -rays are produced when one of the following event takes place:

UV rays strike a metal target

Infra-red rays strike a metal target

Cathode rays strike a metal target

Radio waves strike a metal target

49. The unique feature of Mycoplasmas which distinguishes them from other prokaryotes is:

Presence of murrain in cell walls

Presence of chitin in cell walls

Presence of peptidoglycan cell wall

Absence of cell wall itself

50. Algae are always:

Blue-green

Photosynthetic

Eukaryotic

Unicellular

51. Uricotelic animals are those that excrete nitrogenous waste in the form of uric acid. Which among the following is a uricotelic organism?

Birds

Frogs

Bony fish

Mammals

52. The two strands of the DNA double helix are held together by:

Hydrogen bonds

C=C double bonds

Hydrophobic bonds

Peptide bonds

53. When performing a tetrad analysis in yeast, it is noticed that the ascus contains four kinds of ascospores, one that is like each of the parents and two that are recombinants. What is this kind of ascus called?

Parental ditype

Non-parental ditype

Tetratype

Recombinant ditype

54. Which among the following is celebrated as a world environmental day?

August 8th

June 5th

May 7th

June 28th

55. The nature of nutrition of most of the parasitic protozoa is:

Mesozoic

Holozoic

Archenozoic

Parazoic

56. Which of the following salt has the same value of Vant's Hoff factor as that of

Al2(S04)3

Al(N03)3

FeS04

Na2S04

57. McFadyean's reaction is employed for the presumptive diagnosis of:

Anthrax

Tetanus

Typhoid

Mycobacterium

58. The chemical substance found abundantly in the middle lamella of plant cells is:

Suberin

Lignin

Cellulose

Pectin

59. Excessive richness of nutrients in waterbodies result in dense growth of plant life by a process called:

Pasteurization

Biofertilization

Eutrophication

Bioremediation

60. Phosphorylation-dephosphorylation of proteins is an important mechanism of enzyme:

Synthesis

Degradation

Regulation

Turnover

61. Which one of the following is a secondary pollutant?

CO

C02

S02

PAN (Peroxy acetyl nitrate)

62. The stages of parasitic protozoa that actively feed and multiply are called as:

Trophozoites

Hydrozoites

Cysts

Colon

63. Grignard reagent react with ketones with subsequent hydrolysis to give

2° alcohol

3° alcohol

Ketone

Carboxylic acid

64. A psychrophilic halophile would be a microbe that prefers the following conditions:

Warm temperatures and increased amounts of pressure

Cold temperatures and increased amounts of salt

Cold temperatures and the absence of oxygen

Warm temperatures and increased amounts of acid

65. Krebs cycle starts with the formation of a 6-carbon compound by chemical reaction between:

Malic acid and acetyl CoA

Fumaric acid and acetyl CoA

Oxaloacetic acid and acetyl CoA

Succinic acid and acetyl CoA

66. Which among the following is commonly called as "subabul"?

Prosopis jul?flora

Leucaena leucocephala

Pithecalobium saman

Albizzia lebbeck

67. Lysozyme is present in one ofthe following:

Cerebro-spinal fluid

Saliva

Urine

Sweat

68. The respiratory quotient is more than unity when the respiratory substrate is:

Organic acid

Sugar

Protein

Fat

69. Which of the following is not a method by which organisms genetically resist drugs?

Transfer of R factor

Synthesis of enzymes that inactivate the drug

Decrease in drug uptake and drug permeability into the cell

Modification of an essential metabolic pathway

70. Hydathodes possess the following in their anatomy:

Oil secreting glands

Water secreting glands

Honey glands

Mucilage secreting glands

71. One of the following functions describes the role of contractile vacuoles in a protozoa organism:

Maintain osmotic balance by continuous water expulsion

Creates sites of food digestion

Contain specific enzymes to catalyze degradation

Reaction centers for photosynthesis

72. White lead is a mixture of the following compounds:

An allotrope of lead

Lead sulphate

Lead carbonate Lead sulphate

Basic lead carbonate

73. The most selective antibiotics are those that interfere with the synthesis of:

Bacterial Cell walls

Bacterial DNA

Bacterial Plasma membrane

Bacterial RNA

74. Blue green algae are often found associated with:

Citrus

Cycas

Azadirachta

Phoenix

75. One of the following is a remarkably hardy fresh water fish, though surviving in waters of very low oxygen saturations, high salinities and high temperatures can be used in biological control of mosquitoes/larvicidal fish is:

Carp

Eel

Gambusia

Cat fish

76. An organic acid which undergoes both dehydrogenation and decarboxylation is:

Malic acid

Ketoglutaric acid

Oxalosuccinic acid

Isocitric acid

77. A phenomenon called 'pseudodominance' could be demonstrated in a heterozyote when it carries a

Deletion

Duplication

Paracentric inversion

Reciprocal translocation

78. Root parasite producing largest flower is:

Striga

Rafflesia

Santalwn

Orobanche

79. Aristotle's lantern, a masticatory apparatus consIstmg of five large calcareous plates surrounding the mouth and used for feeding forms a characteristic feature of one of the following:

Echinoidea

Asteroidea

Holothuroidea

Ophiuroidea

80. For an acid HA, the pKa value is negative, indicating that the acid is:

Completely dissociated

Partially dissociated

Not dissociated at all

50 dissociated

81. Organisms which have spore-forming stage in their life cycle and lack special locomotory organelles belong to which phylum of Protozoa?

Ciliophora

Myxozoa

Apicomplexa

Microspora

82. Which element is essential for photolysis of water?

Calcium

Sodium

Sulphur

Chlorine

83. The passage called 'Foramen of Monro' which inter connects the two paracoels with one another as well to the third ventricle called diacoel is found in

Heart

Lungs

Brain

Kidney

84. Which mineral is essential for the activity of the enzyme nitrate reductase?

Copper

Iron

Molybdenum

Magnesium

85. Which type of genomics studies the transcripts and proteins expressed by a genome?

Comparative genomics

Structural genomics

Proteo genomics

Functional genomics

86. Safranin stains are produced from:

Lignified cells

Starch

Pyrenoids

Cork tissues

87. A special voice box which is characteristic of birds and is located at the posterior end of the trachea and its junction with the bronchi for producing sound is called as:

Larynx

Pygostyle

Synsacrum

Syrinx

88. Which of the following molecule possesses a dipole moment?

CH4

CH3CH3

CHCb

HC==CH

89. Viruses are not capable of doing one of the following things:

Pickup and carry genes from their host cells

Carry genes coding for specific proteins

Code for enzymes different from those of the host

Grow and replicate on their own

90. A sudden change from anaerobic to aerobic respiration due to availability of 02 is

Richmond-Lang effect

Emerson effect

Pasteur effect

Warburg effect

91. Classification of the phylum Porifera is based on one of the following:

Reproduction

Spicules

Branching

Symmetry

92. The shrunken condition of a cell is brought about by the process of:

Osmosis

Plasmolysis

Imbibition

Diffusion

93. The physiologically receptive state in which a bacterial cell is able to be transformed is called as:

Activated

Competent

Lysogenic

Inducible

94. What is the substrate in protoplasmic respiration?

Carbohydrates

Fats and oils

Proteins

Organic acids

95. A steroid hormone, secreted by a pair of prothoracic glands in the thorax of insects and by Y organs in crustaceans which stimulates moulting and metamorphosis is:

Thyroxine

Pheromone

Ecdysone

Androgen

96. The type of glass used in making lenses and prisms is:

Pyrex glass

Quartz glass

Jena glass

Flint glass

97. The toxin of Staphylococcus aureus that may result into scalded skin syndrome is

Enterotoxin

Leucocidin

Epidermolytic toxin

Haemolysin

98. When a cell is fully turgid, which of the following will be zero?

Suction pressure

Wall pressure

Turgor pressure

Osmotic pressure

99. A substance produced upon viral infection in a cell that can protect other cells from further infection is

Seratonin

Interferon

Histamine

Progesterone

100. All of the following species are considered coliforms except

Enterobacter aerogenes

Klebsiella pneumonia

Salmonella typhi

Escherichia coli