S.NO.
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QUESTION
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ANS
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HINT
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SOURCE OF QUESTION
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1 |
Interlocking of food chains results into
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Food web |
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NCEI online test & NOTES
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2 |
Pseudomonas is an important component of
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nitrogen cycle |
P. denitrificans |
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3 |
Population dispersion is
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Spatial distribution of individuals
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it is dispersiON not dispersal
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4 |
Lotic ecosystem refers to
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Flowing water ecosystem
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5 |
Logistic growth occurs when there is
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a fixed carrying capacity
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ex:- human population growth
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6 |
A pollutant is any substance, chemical or factor that bring
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Undesirable change in the environment that is hazardous to health
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7 |
Natality refers to |
Birth rate |
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8 |
Symbiois means interdependence of two organisms which is
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none of these |
may be facultative or obligatory
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9 |
Above which level sound becomes noise pollutant ?
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above 60 db |
at 80 db- Annoyance occurs
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10 |
Biological magnification of pollutants means
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enhanced accumulation along the food chain
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11 |
First National Park of the World was
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Yellowstone National Park
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1872 |
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12 |
Emu bird is found in
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Australian region |
in New zealand |
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13 |
Gila Monster Lizard is
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a poisonous lizard |
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14 |
The largest rodent of the world is
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capybara |
Avg wt- 100 pounds |
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15 |
Sloths are characteristics of
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neotropical region |
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16 |
Hippopotamus is found in
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ethiopian region |
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17 |
Tropism is a |
? |
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18 |
Modification of behaviour as a result of experience is called
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Learning |
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19 |
Instinctive behaviour is controlle by
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Genes |
fixed in species memory
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20 |
Digger wasp after emergence mates, then makes nests, provisions it, lays eggs and closes the nest. This behaviour is
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Instinct |
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21 |
Who wrote 'King Solomon's Ring's book ?
|
K. lorenz |
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22 |
Innate behaviour is also called
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Stereo type behaviour
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23 |
Courtship is a/an |
Instinct |
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24 |
Pavloc received Nobel Prize in
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1904 |
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25 |
Chemicals used for communication are called
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Pheromones |
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26 |
Long distance seasonal migration are most common in
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Birds |
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27 |
Fish used to eat mosquitoes for control of malaria is
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Gambusia |
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28 |
Honeybee used for beekeeping world over is
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Apis mellifera |
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29 |
Mumps is a disease caused by
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Virus |
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30 |
Common round worm infecting human being is
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Ascaris lumbricoides
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NCEI online test & NOTES
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31 |
Amoebiasis is caused by
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Entamoeba histolytica
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32 |
Burnner's glands are present in sub-mucosa of
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Intestine |
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33 |
Bowman's capsule is formed of
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Sqamous epithelium |
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34 |
Sertoli cells are found in
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Seminiferous tubules
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35 |
Meissner's corpuscles occur in
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Skin |
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36 |
Peyer's patches produce
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Lymphocytes |
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37 |
Kupffer's cells occur in
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Liver |
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38 |
Organs of Ruffini are receptors of
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touch |
mechanoreceptor for deep sensation
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39 |
Third ventricle of brain is also called
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Diacoel |
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40 |
Second cranial nerve supplies
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Retina only |
sensory |
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41 |
Arrector pili are |
Involuntary muscles |
smooth muscle |
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42 |
Sea horse is a/an |
Fish |
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43 |
Sea fan is a |
Coelenterate |
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44 |
Jelly fish is a |
Coelenterate |
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45 |
Sand piper is a |
Birds |
|
|
46 |
Sand hopper is a/an |
crustacean |
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47 |
Brachymeiosis is |
? |
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|
48 |
Lyon's hypothesis deals with
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Number of Barr bodies
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49 |
What is the function of Centrosome ?
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Formation of spindle fibre
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50 |
Mutual exchange of segments between two chromosomes is called
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Translocation |
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51 |
Glycosylation of protein is done by
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Endoplasmic reticulum
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52 |
Nucleolous is formed of
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RNA, DNA & protein
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NCEI online test & NOTES
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53 |
Perinuclear space is
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Space between outer and inner membrane of nuclear envelop
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NCEI online test & NOTES
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54 |
Chromatin fibres are found in nucleus during
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interphase |
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NCEI online test & NOTES
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55 |
Reverse transcriptase is also called
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RNA dependent DNA polymerase
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NCEI online test & NOTES
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56 |
Balbiani rings occur in
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Polytene chromosomes
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57 |
The gene suppressed by epistatic gene is called
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Hypostatic gene |
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58 |
Down's syndrome is man is caused by
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Trisomy of chrosome No. 21
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NCEI online test & NOTES
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59 |
Sex determination in honeybees is called
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Haplo-diploidy |
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60 |
Genic Balance Theory' was propsed by
|
Bridges |
C. Bridge |
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61 |
One gene one enzyme hypothesis' was proposed by
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Beadle and Tatum |
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62 |
According to Nei-Darwinism, which one of these is responsible for evolution of organisms ?
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Mutation and Natural selection
|
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NCEI online test & NOTES
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63 |
Mendel formulated the law of purity of gametes on the basis of
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Monohybrid cross |
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NCEI online test & NOTES
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64 |
If a haemophilic man marries a normal woman, the offspring will be
|
All normal |
considering female as XX
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NCEI online test & NOTES
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65 |
Which of the following pairs represent homologous organs ?
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Wing of bird and wing of bat
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NCEI online test & NOTES
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66 |
Atavism is man means
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Apperance of ancestral characters
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NCEI online test & NOTES
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67 |
Mammalian eggs have |
little yolk |
microlecithal (Alecithal is a misnomer)
|
NCEI online test & NOTES
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68 |
The fusion of male and female pro-nuclei is called
|
Amphimixis |
Fertilisation includes both penetration & amphimixis
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NCEI online test & NOTES
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69 |
Gastrulation involved the differentiation of
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Ectoderm, Mesoderm and Endoderm
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NCEI online test & NOTES
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70 |
The egg of frog is |
Telolecithal |
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NCEI online test & NOTES
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71 |
Blastopore is found in
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Gastrula |
|
NCEI online test & NOTES
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72 |
During metamorphosis, the disappearance of larval organs is called
|
Histolysis |
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NCEI online test & NOTES
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73 |
The Eustachian tube develops from
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endoderm |
from pharyngeal pouch
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|
74 |
Placenta in mammalian embryo is formed from
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All of these |
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NCEI online test & NOTES
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75 |
Termination of gastrulation is marked by
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Closure of blastopore
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NCEI online test & NOTES
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76 |
Third cleavage in frog is
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Latitudinal |
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NCEI online test & NOTES
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77 |
Which of the following hormone is a modified amino acid ?
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Epinephrine |
tyrosine derivative |
NCEI online test & NOTES
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78 |
Which endocrine gland become inactive during old age ?
|
Thymus |
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NCEI online test & NOTES
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79 |
Which hormone plays a key role in carbohydrate metabolism ?
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Insulin |
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NCEI online test & NOTES
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80 |
How many of the 20 amino acids are essential for an adult human ?
|
8 |
|
NCEI online test & NOTES
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81 |
A person exclusively on a diet of milk, egg and bread will suffer from
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Scurvy |
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NCEI online test & NOTES
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82 |
A temporary endocrine gland forme in ovary after ovulation is
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Corpus luteum |
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NCEI online test & NOTES
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83 |
Keratin is a protein having larger amount of
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Sulphur |
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NCEI online test & NOTES
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84 |
Glycolysis leads to conversion of
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Glucose into Pyruvic acid
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NCEI online test & NOTES
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85 |
The most stable RNA in the cell is
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r-RNA |
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NCEI online test & NOTES
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86 |
Enzyme which forms the peptide bond is
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Peptidyl transferase
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|
NCEI online test & NOTES
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87 |
The protein part o enzyme is
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Apoenzyme |
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NCEI online test & NOTES
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88 |
RNA with enzyme activity is called
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Ribozyme |
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NCEI online test & NOTES
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89 |
The organism used for preparing alcohol is
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Saccharomyces |
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NCEI online test & NOTES
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90 |
Renin used in cheee industry is a/an
|
Enzyme |
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NCEI online test & NOTES
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91 |
The term antibiotic was coined by
|
selman waksman |
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NCEI online test & NOTES
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92 |
Monoclonal antibody is produced from
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Hybridoma |
|
NCEI online test & NOTES
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93 |
Humulin is a/an |
Protein |
human insulin |
NCEI online test & NOTES
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94 |
ELISA is used to detect viruses where key reagent is
|
alkaline phosphatase
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alkaline P. & HRP are used.
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95 |
Milk is converted into curd by
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Lacto bacillus |
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NCEI online test & NOTES
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96 |
Which of the following is secreted by yeast, responsible for fermentation ?
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Invertase |
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NCEI online test & NOTES
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97 |
Major cause of declining biodiversit is
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Destruction of habitat
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NCEI online test & NOTES
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98 |
Agro-ecosystem has low
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biodiversity |
as it intend to grow some special crop
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NCEI online test & NOTES
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99 |
Two or more species occupying same/overlapping areas are called
|
Sympatric species |
|
NCEI online test & NOTES
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100 |
The term 'ecosystem' was coined by
|
A. G. Tansley |
|
NCEI online test & NOTES
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