Zoology RAS 2007Prel

ZOOLOGY

1
Interlocking of food chains results into
Food web

2
Pseudomonas is an important component of
nitrogen cycle

P. denitrificans

3
Population dispersion is
Spatial distribution of individuals

4
Lotic ecosystem refers to
Flowing water ecosystem

5
Logistic growth occurs when there is
a fixed carrying capacity

ex:- human population growth

6
A pollutant is any substance, chemical or factor that bring
Undesirable change in the environment that is hazardous to health

7
Natality refers to
Birth rate

8
Symbiois means interdependence of two organisms which is
none of these

9
Above which level sound becomes noise pollutant ?
above 60 db

at 80 db- Annoyance occurs

10
Biological magnification of pollutants means
enhanced accumulation along the food chain

11
First National Park of the World was
Yellowstone National Park
1872

12
Emu bird is found in
Australian region
in New zealand

13
Gila Monster Lizard is
a poisonous lizard

14
The largest rodent of the world is
capybara
Avg wt- 100 pounds

15
Sloths are characteristics of
neotropical region

16
Hippopotamus is found in
ethiopian region

17
Tropism is a
?

18
Modification of behaviour as a result of experience is called
Learning

19
Instinctive behaviour is controlled by
Genes

fixed in species memory

20
Digger wasp after emergence mates, then makes nests, provisions it, lays eggs and closes the nest. This behaviour is
Instinct

21
Who wrote 'King Solomon's Ring's book ?
K. lorenz

22
Innate behaviour is also called
Stereo type behaviour

23
Courtship is a/an
Instinct

24
Pavloc received Nobel Prize in
1904

25
Chemicals used for communication are called
Pheromones

26
Long distance seasonal migration are most common in
Birds

27
Fish used to eat mosquitoes for control of malaria is
Gambusia

28
Honeybee used for beekeeping world over is
Apis mellifera

29
Mumps is a disease caused by
Virus

30
Common round worm infecting human being is
Ascaris lumbricoides

31
Amoebiasis is caused by
Entamoeba histolytica

32
Burnner's glands are present in sub-mucosa of
Intestine

33
Bowman's capsule is formed of
Sqamous epithelium

34
Sertoli cells are found in
Seminiferous tubules

35
Meissner's corpuscles occur in
Skin

36
Peyer's patches produce
Lymphocytes

37
Kupffer's cells occur in
Liver

38
Organs of Ruffini are receptors of
touch

mechanoreceptor for deep sensation

39
Third ventricle of brain is also called
Diacoel

40
Second cranial nerve supplies
Retina only

sensory

41
Arrector pili are
Involuntary muscles

smooth muscle

42
Sea horse is a/an
Fish

43
Sea fan is a
Coelenterate

44
Jelly fish is a
Coelenterate

45
Sand piper is a
Birds

46
Sand hopper is a/an
crustacean

47
Brachymeiosis is
?

48
Lyon's hypothesis deals with
Number of Barr bodies

49
What is the function of Centrosome ?
Formation of spindle fibre

50
Mutual exchange of segments between two chromosomes is called
Translocation

51
Glycosylation of protein is done by
Endoplasmic reticulum

52
Nucleolous is formed of
RNA, DNA & protein

53
Perinuclear space is
Space between outer and inner membrane of nuclear envelop

54
Chromatin fibres are found in nucleus during
interphase

55
Reverse transcriptase is also called
RNA dependent DNA polymerase

56
Balbiani rings occur in
Polytene chromosomes

57
The gene suppressed by epistatic gene is called
Hypostatic gene

58
Down's syndrome is man is caused by
Trisomy of chrosome No. 21

59
Sex determination in honeybees is called
Haplo-diploidy

60
Genic Balance Theory' was propsed by
Bridges

C. Bridge

61
One gene one enzyme hypothesis' was proposed by
Beadle and Tatum

62
According to Nei-Darwinism, which one of these is responsible for evolution of organisms ?
Mutation and Natural selection

63
Mendel formulated the law of purity of gametes on the basis of
Monohybrid cross

64
If a haemophilic man marries a normal woman, the offspring will be
All normal

considering female as XX

65
Which of the following pairs represent homologous organs ?
Wing of bird and wing of bat

66
Atavism is man means
Apperance of ancestral characters

67
Mammalian eggs have
little yolk

microlecithal (Alecithal is a misnomer)

68
The fusion of male and female pro-nuclei is called
Amphimixis

Fertilisation includes both penetration & amphimixis

69
Gastrulation involved the differentiation of
Ectoderm, Mesoderm and Endoderm

70
The egg of frog is
Telolecithal

71
Blastopore is found in
Gastrula

72
During metamorphosis, the disappearance of larval organs is called
Histolysis

73
The Eustachian tube develops from
endoderm

from pharyngeal pouch

74
Placenta in mammalian embryo is formed from
All of these

75
Termination of gastrulation is marked by
Closure of blastopore

76
Third cleavage in frog is
Latitudinal

77
Which of the following hormone is a modified amino acid ?
Epinephrine

tyrosine derivative

78
Which endocrine gland become inactive during old age ?
Thymus

79
Which hormone plays a key role in carbohydrate metabolism ?
Insulin

80
How many of the 20 amino acids are essential for an adult human ?
8

81
A person exclusively on a diet of milk, egg and bread will suffer from
Scurvy

82
A temporary endocrine gland forme in ovary after ovulation is
Corpus luteum

83
Keratin is a protein having larger amount of
Sulphur

84
Glycolysis leads to conversion of
Glucose into Pyruvic acid

85
The most stable RNA in the cell is
r-RNA

86
Enzyme which forms the peptide bond is
Peptidyl transferase

87
The protein part o enzyme is
Apoenzyme

88
RNA with enzyme activity is called
Ribozyme

89
The organism used for preparing alcohol is
Saccharomyces

90
Renin used in cheee industry is a/an
Enzyme

91
The term antibiotic was coined by
selman waksman

92
Monoclonal antibody is produced from
Hybridoma

93
Humulin is a/an
Protein

human insulin

94
ELISA is used to detect viruses where key reagent is
alkaline phosphatase

alkaline P. & HRP are used.

95
Milk is converted into curd by
Lacto bacillus

96
Which of the following is secreted by yeast, responsible for fermentation ?
Invertase

97
Major cause of declining biodiversit is
Destruction of habitat

98
Agro-ecosystem has low
biodiversity

as it intend to grow some special crop

99
Two or more species occupying same/overlapping areas are called
Sympatric species

100
The term 'ecosystem' was coined by
A. G. Tansley