1 Yellow-green algae belong to the division

Cyanophyta

Chlorophyta

Xanthophyta

Chrysophyta

2 Which of the following algae possesses a plant body that bears a superficial resemblance to the roots, leaves and stems of higher plants?

Vaucheria

Ectocarpus

Oedogonium

Sargassum

3 Physiological anisogamy involves union of two of the following:

Similar gametes which are motile

Similar gametes which are non-motile

One active motile gamete and one passive non-motile gamete which are similar

Dissimilar gametes which are motile

4 The life cycle exhibited by Batrachospermum is

Diplohaplontic type

Haplobiontic type

Diplobiontic type

Diplontic type

5 The Chantransia stage in the life is a characteristic feature of

Batrachospermum

Sargassum

Oedogonium

Coleochaete

6 Which of lhe following algae is found in the body of hydra and beneath the scales of fishes?

Volvox

Oedogonium

Chlamydomonas

Chlorella

7 Nannandria of Oedogonium are

Monoecious

Dioecious

Both monoecious and dioecious

None of the above

8 The reserve food material in Xanthophyceae is

Lamminarin and Mannitol

Fucoxanthin

Leucosin

Floridean Starch

9 The algae which are an important source of iodine, mineral salts, bromine and potash are

Diatoms

Kelps

Blue-green algae

Red algae

10 Agar-agar is obtained from

Brown algae

Blue-green algae

Red algae

Green algae

11 Sexual reproduction takes place by gametangial copulation in

Yeast

Lichens

Rhizopus

Penicillium

12 A derivative of ergot known by the name lysergic acid, used in human medicine is obtained from

Mucor racemosus

Aspergillus (Iavus

Claviceps purpurea

Penicillium javanicum

13 Which of the following classes of fungi fonn croziers during sexual reproduction?

Ascomycetes

Phycomycetes

Basidiomycetes

Deuteromycetes

14 In the life history of Puccinia, the spores which infect Berberis leaves are

Basidiospores

Uredospores

Aeciospores

Telentospores

15 The yeast in which both haploid and diploid alternating generations propagate by budding is

Saccharomyces cerevisiae

Saccharomyces ludwigii

Schizosaccharomyces octosporus

None of the above

16 Colletotrichum belongs to form order

Melanconiales

Sphaeropsidales

Moniliales

Mycelia sterilia

17 Deuteromycetes fungi produce conidia in

Sporodochium

Pycnidium

Acervulus

All the above

18 Lichens are classified on the basis of

Algal Partner

Fungal Partner

Both Algal and Fungal Partner

External Structure

19 Which of the following edible mushrooms belongs to Basidiomycota

Morchella

Terfezia

Verpa

Pisolithus

20 Pleurotus is comlllonly known as

Button mushroom

Oyster mushroom

Paddy Straw mushroom

Jelly Fungi

21 Liverworts are usually

Green and thalloidal

Colourless and thalloidal

Red and thalloidal

Blue and thalloidal

22 Cyanobacteria are found in the thallus of

Riccia

Anthoceros

Funaria

Pellia

23 The teeth of the peristome of Funaria are

sensitive

hydroscopic

hygroscopic

sensitive and hydrophobic

24 Alternation of morphologically different generations is called

Homologous

Heterologous

Both of the above

None of the above

25 Gametophytic generation is dominant in

Gymnosperms

Angiosperms

Bryophyta

Pteridophytes

26 The gametophyte is saprophytic subterranean in

Osmunda

Psilotum

Nephrolepis

Rhynia

27 The diameter of megaspore of Isoetes is

1·0 mm to 1·5 mm

1·6 mm to 2·0 mm

more than 2·0 mm

upto 0·9 mm

28 The name Calamites is due to Suckow who used it for

pith cast

tree

sporangium

rhizome

29 The leaf surface of Azalia is papillate to prevent

rotting

wetting

floating

All of the above RPM

30 The most important genera Rhynia and Horneophyton are from the

Mesozoic in Scotland

Paleozoic in Scotland

Middle Devonian in Scotland

Upper Silurian in Germany

31 The bacteria which do not possess flagellae are termed

monotrichous

amphitrichous

peritrichous

atrichous

32 The bacterial chromosome has a molecular weight of about

0·02 x 10^9

0·2 x 10^9

2·0 x 10^9

20x 10^9

33 Plastids are present is

E.coli

TMV

lichens

bacteriophage

34 Conjugation in E. coli was demonstrated by

Tatum and Lederberg

Singh

Pande

Jain

35 The Irish potato famine was caused by

Alternaria solani

Phytophthora infestans

Puccinia graminis

Albugo candida

36 Corynebacterium rathayi causes

yellow slime disease

yellowing rot

yellow rust

yellow mosaic

37 Marmor virgatum causes

streak mosaic

soil borne mosaic

foot rot

powdery mildew

38 Root knot disease is caused by

Anguina tritici

Marmor tritici

Helminthosporium satiuum

Meloidogyne arenaria

39 The point at which the inoculum establishes itself inducing infection is called

infection court

infection area

infection spot

infection band

40 Loose smut of wheat is caused by

Puceinia graminis var. tritiei

Ustilago nuda var. tritici

Puccinia striformis

Puccinia reeondita

41 Sequoia sempervirens attain a height upto

less than 100 meters

100 meters

more than 100 meters

None of the above

42 Sago is obtained from the stem of

Agathis australis

Dioon edule

Cryptomeria japonica

Taxodium distichum

43 The aristala that still occasionally produces cones in Inyo National Forest of California. USA is

300 years old

5000 years old

4600 years old

3000 years old·

44 Ephedrine obtained from Ephedra is effective in

cold

asthma

hepatitis

malaria

45 The development of female gametophyte in Gnetum is

bisporic

tetrasporic

trisporic

monosporic

46 Tragopogon porrifolius is known as

vegetable insect

vegetable oyster

vegetable parasite

vegetable fish

47 Gynobasic style is observed in

Malvaceae

Liliaceae

Lamiaceae

Poaceae

48 Ranunculus aquatilis shows

anemophily

entomophily

heterophily

homophily

49 Wax utilized for manufacturing candles, boot polishes is obtained from

Loportea crenulata

Copernicia cerifera

Mantia phya

Boehmeria nivea

50 Bisexual flowers never opening but usually remaining underground and closed is called

Homogamy

Allogamy

Cleistogamy

Apogamy

51 Anomocytic type of stomata are seen in

Malvaceae

Papaveraceae

Capparidaceae

All of them

52 The activity of normal cambium is abnormal in

Calotropis

Bignonia

Strychnos

Epilobium

53 Transfer of pollen grains from the anther to stigma of a different plant is

Autogamy

Xenogamy

Allogamy

Geitonogamy

54 Helobial endosperm is restricted

Dicotyledons

Monocotyledons

Pteridophyta

Bryophyta

55 Plants containing poisonous compounds are called

Urioids

Phytol

Cyanophoric

Semantides

56 The system which does not throw light on the origin of angiosperms was proposed by

Charles Bessey

Bentham and Hooker

Engler and Prantl

John Hutchinson

57 The lowest chromosome number is shown by

Poa littorosa

Allium cepa

Haplopappus gracilis

Quercus indica

58 Gymnosperms are separated and placed rightly before angiosperms by

Bentham and Hooker

Engler and Prantl

Anderson

Eichler

59 The calcium oxalate crystals are seen in some members of

Solanaceae

Onagraceae

Liliaceae

Poaceae

60 The oldest angiospenns are believed to be

Archaefructus

Achyranthus

Asclepias

Amanita

61 Which period is often referred as Coal Age?

Cretaceous

Permian

Carboniferous

Silurian

62 Diatomaceous earth is formed from the siliceous cell walls of

Fungi

Algae

Bryophytes

Starfishes

63 This is a fossilised faeces or excreta of animals.

Coal balls

Amber

Coprolite

Nodule

64 The seed of Iyginopteris is called

Crossotheca

Kaloxylon

Sphenopteris

Lagenostoma

65 Which of the following is a fossil pteridosperm

Lyginopteris

Cordaites

Bennettites

Ginkgo

66 According to Vavilov, the cultivated crops originated from

4 domestication centers

6 domestication centers

8 domestication centers

10 domestication centers

67 The ploidy of Triticum aestivum is

Diploid

Triploid

Tetraploid

Hexaploid

68 International Rice Research Institute is located in

Philippines

UK

India

Japan

69 The botanical name of Ragi (finger millet) is

Panicum miliaceum

EleuHine coracana

Dolichos lablab

Avena sativa

70 Which of the following is not a kind of tea?

Green tea

Oolong tea

Let-pet tea

Red tea

71 The yellow coloured dye is obtained from Crocus (Saffron), from its

Leaves

Bark

Stigma

Young flower bud

72 Ratooning is practised in

Groundnut plant

Rubber tree

Sugarcane plant

Pea plant

73 Which of the following is not an essential oil?

Olive oil

Lemon grass oil

Jasmine oil

Sandalwood oil

74 Lloyd Botanical Garden is situated at

England

Lucknow

Berlin

Darjeeling

75 The dried specimens of plants in the herbaria are poisoned with

Potassium cyanide

Laurylpentachloride

Dichloro Diphenyl Tetraacetic acid

Bromophenol

76 The fluid-mosaic model for cell membrane was given by

Singer and Nicolson

Benda and Lyon

Singer and Johnson

Singer and Davson

77 Cells placed in a hypotonic solution

shrink

swell

remain unaffected

dissolve

78 The diameter of the macrofibrils of the cell wall is upto

4·0 m

1.0 m

0·8 m

0.5 m

79 The invaginations of plasma membrane in bacteria are known as

ribosomes

mesosomes

polysomes

episomes

80 The most widely used fixative in electron microscopy is

ester

ketone

formaldehyde

ether

81 Cell organelles known as 'suicide bags' of the cells are

mitochondria

Iysosomes

episomes

peroxisomes

82 Peroxisomes contain enzyme

catalase

ligase

lactase

endonuclease

83 The sedimentation coefficient of the ribosome with 308 and 50S subunits is

80S

70S

60S

100S

84 The stalked particles present on the inner membrane of mitochondria are known as

subunits of Parson

subunits of Fernandez-Moran

subunits of Nelson

subunits of Johnson

85 The F1 particles or elementary particles found in the mitochondria are

sessile

liquid

stellate

stalked

86 The microtubules of spindle fibres are composed of

chitin

tubulins

keratin

albumin

87 Down syndrome is due to

monosomy -21

trisomy -12

trisomy -21

monosomy -12

88 Lateral loops are observed in

lampbrush chromosome

salivary gland chromosome

Both and

None of the above

89 When the inverted segment occurs on the chromosome arm and does not include the centromere, then the inversion is called as

pericentric inversion

paracentric inversion

acentric inversion

helocentric inversion

90 Cri-du-chat syndrome results from the deletion of the short arm of chromosome

12

07

05

15

91 Raphanobrassica is alan

aneuploid

autopolyploid

monoploid

allopolypoid

92 Polyploid can be induced experimentally by using

alcohol

colchicine

acetone

ether

93 The nucleolus was first described by

Fahn

Fontana

Frank

Frazer

94 In a nucleosome, the linker histone is

H2A

H3

H4

H1

95 The process of crossing-over in meiosis starts during

Leptotene

Pachytene

Zygotene

Diakinesis

96 Linkage in Dro.•ophila melanogaster was first reported by

Watson

Morgan

Muller

Monod

97 In a double cross-over, when the same two chromatids of a tetrad are involved in the formation of 2 chiasmata, it is known as

multiple chiasma

reciprocal chiasma

single chiasma

complementary chiasma

98 Diploid organisms that have 2 different alleles of a specific gene locus are said to be

homozygous

heterozygous

azygous

trizygous

99 In Paramoecium cytoplasmic particles transmitted through the cytoplasm are known as

Alpha particles

Kappa particles

Sigma particles

Beta particles

100 Hypertrichosis in man is due to

recessive X-linked gene

dominant X-linked gene

Y-linked gene

somatic gene

101 Barr bodies are absent in

Klinefelter syndrome

Normal females

Normal males

Triple X-female

102 A mutation involving a change from a purine-pyrimidine base pair to the other purine-pyrimidine base pair is known as

neutral mutation

tranversion mutation

nutritional mutation

transition mutation

103 Kernel colour in wheat is an example of

quantitative inheritance

polygenic inheritance

monogenic inheritance

cytoplasmic inheritance

104 Skin colour in man is due to

qualitative inheritance

quantitative inheritance

monogenic inheritance

cytoplasmic inheritance

105 The trihydrid Aa Bb Cc is test crossed to the triple recessive aa bb cc and the progeny
17 Abc, 3 ABc, 71 ABC following phenotypes are obtained in the 64 abc, 2 abc, 11 aBc, 18 aBC, 14 AbC, How many loci are linked

One loci linked

Two loci linked

Three loci linked

All of them linked

106 In Z-DNA, the number of base pairs, per helical turn are

10.9

10·1

21.1

10.0

107 The process of protein synthesis is terminated by the codon

UUG

UAA

UUU

CCU

108 The codon AAA codes for the amino acid

Lysine

Serine

Valine

Leucine

109 The Operon model for the regulation of lac genes was proposed by

Beadle and Tatum

Watson and Crick

Jacob and Monod

Nilsson-Ehle


110 The genetic code is

triplet code

non overlapping

universal

All the above

111 'Germplasm theory which was published in the book Das Keimplasma was preposed by

Stebbins

August Weismann

Mullar

S. Wright

112 The concept of natural .election was explained by Darwin in his masterpiece

Principles of Geology

Philosophie Zoologique

The Origin of Species

None of these

113 rRNA is synthesized by the enzyme

RNA polymerase I

RNA polymerase II

RNA polymerase III

Both and

114 The removal of introns from eukaryotic pre-mRNA occurs in the nucleus in complexes called as

spliceosomes

quantosomes

dictyosomes

mesosomes

115 The double-helix model of DNA was proposed by Watson and Crick in

1850

1950

1953

1853

116 Which of the following methods of plant breeding is the easiest method of crop improvement?

Hybridization

Plant Introduction

Mass Selection

Mutation Breeding

117 Mass Selection method of crop improvement is followed in

Cross Pollinated Crops

Self Pollinated Crops

Both Cross and Self Pollinated Crops

Vegetatively Propagated Plants

118 The correct sequence of hybridization technique is

Emasculation -Bagging -Crossing -Labelling

Emasculation -Crossing -Bagging -Labelling

Labelling -Bagging -Crossing -Emasculation

Crossing -Bagging -Labelling -Emasculation

119 In backcross method, the F1 is crossed to

Recipient parent

Donor parent

Both the parents

Allowed to self pollinate

120 Which of the following radiations are non-ionising?

alpha-rays

X-rays

y-rays

UV-rays

121 The growth hormone used in Plant Tissue culture is

Auxins

Cytokinins

Giberellins

All the above

122 Somatic embryos are encapsulated in a suitable matrix to produce synthetic seeds

Sodium purpureate

Sodium alginate

Sodium hexametaphosphate

Sodium hydroxide

123 Which of the following is not a type of ELISA (Enzyme Linked Immuno-Sorbent Assay)

DAS -ELISA

DAC -ELISA

PAS -ELISA

PAC -ELISA

124 The plasmid present in Agrobacterium tumefaciens is

Ti plasmid

Ai plasmid

Ri plasmid

Gi plasmid

125 In the Transgenic Tobacco plant, the transfer of a gene from E. coli to tobacco was for

Cydodextrin glucosyltransferase

Mannitol dehydrogenase

Acetyl Co-A reductase

Nopaline synthatase

126 Physical Gene transfer in plants can take place by

DNA Mediated Gene Transfer

Agroinfection

RNA Mediated Gene Transfer

Polymerase Chain Transfer

127 Which of the following is not a molecular marker?

RFLP

RAPD

VNTR

VAPD

128 For cloning large DNA sequences, which vector can be employed?

YAC

PAC

ZAC

TAC

129 The plasmid prepared by Bolivar and Rodriguez is

pUC

pBR322

YRp

YAC

130 Which of the following methods is used to obtain cybrids

Fusion of normal protoplasts from one parent with enucleated protoplast from the other parent

Fusion of normal protoplast from onc parent and protoplast containing non-viable nuclei from the other

Selective elimination of one of the nuclei from the heterokaryon

Any of the above

131 W.S. Gosset designed

t-test

Z-test

x2-test

F-test

132 When the values ofX and Yare inversely proportional to each other, then the coefficient of correlation is

Perfectly +ve

Perfectly -ve

Moderately +ve

Moderately -ve

133 Yate's correction is applied in

Paired t-test

x2-test

Unpaired t-test

Z-test

134 Which of the following shows no correlation?

The age of husband and wife

Shoe size and intelligence

Years of education and income

Amount of rainfall and yield of crop

135 Regression coefficient of Y for one unit of X can be found out by the formula

<img src='./qimages/-135.jpg'>

136 Nitrosomonas and Nitrobacter are termed

Ammonifying bacteria

Nitrifying bacteria

Denitrifying bacteria

Nitrogen fixing bacteria

137 The reduction of Nitrogen to Ammonia requires

6 electrons

2 electrons

8 electrons

one electron

138 In a molecule of water the average hydrogen -oxygen interatomic distance is

0·965 nm

0·0965 nm

0·0965 nm

0·0965 pm

139 RuBisCO is conjugated enzyme having molecular weight of

560 kd

126 kd

255 kd

600 kd

140 Primary acceptor of CO2 in C4 plants is

RuDP

NaOH

Phosphophenol pyruvate

ATP

141 IUCN is also known as

World Conservation Union

World Population Union

World Wildlife Union

World Nature Union

142 Chief plants of Reed swamp stage are

Phragmites and Scirpus

Salix and Comus

Azolla and Lemna

Carex and Juncus

143 Succession of micro-organisms that occur within micro-environment is called

Sedge meadow

Phytoplankton

Zooplankton

Serule

144 The Ganga Action Plan was launched in

1986

1968

1996

2000

145 Chipko Movement was for

protection of air

protection of tiger

protection of tribals

protection of trees

146 The World Wildlife Fund was launched in India in

1945

1960

1969

1980

147 Genomic database consists of the gene sequence regarded as

R-DNA sequences

C-DNA sequences

mutant DNA sequences

T-DNA sequences

148 The EMBnet was established in the year

1998

1978

1988

1968

149 CDFD is EMBnet Associate Node for

India

Japan

Sweden

China

150 Find the odd abbreviation/database out.

EMBL

GenBank

DDBJ

SWISS -PROT