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7101.

Question : The blood cell that is a precursor to microglial, cell is –

Answer»

A basophil
A monocyte
A neutrophil
A lymphocyte

Answer :B
7102.

Question : Technique of testing amniotic fluid for sex determination is knows as what ?

Answer»


ANSWER :AMNIOCENTESIS
7103.

Question : The blood cells involved in the production of humoral immunity are

Answer»

Eosinophils
Monocytes
B-lymphocytes
T-lymphocytes

Answer :C
7104.

Question : Technique by which mule was produced

Answer»

SOLUTION :CROSS BREEDING
7105.

Question : The blockage of one or two tracheary elements in a tree may cause

Answer»

Breakage in the continuity water COLUMN
No breakage of continuity of water column and ascent of SAP will take place
Breakage of cohesion FORCE in water molecules
None of the above

Answer :B
7106.

Question : Technique based on similarity in DNA base pairs and genetic differences mong individuals.

Answer»

SOLUTION :DNA FINGER PRINTING
7107.

Question : Techinique used in creating Dolly.

Answer»

SOLUTION :SOMATIC CELL NUCLEAR tranfer TECHNIQUE.
7108.

Question : The births and deaths of four populations A, B, C and D in a year are given below. Which population has the highest growth rate?

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ANSWER :A
7109.

Question : Tears of eyes and saliva of mouth are the example of which type of barrier ?

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PHYSICAL BARRIER
CYTOKINE barrier
PHYSIOLOGICAL barrier
Cellular barrier

Solution :Physiological barrier
7110.

Question : The bionomial system of nomenclature was initially proposed by :-

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MAGNUS
Bauhin
Caesalpinno
Discorides

ANSWER :B
7111.

Question : Teacher wrote the steps of a crop improvement programme on the black board as following : Bagging, Emasculation.

Answer»

Solution :(1) Emasculation: REMOVAL of immaure anther from flower bud of female prarent. (br) Bagging: emasculated flowers are covered with a SUITABLE SIZED butter paper bag to prevent contamination of stigma with unwanted pollen grains.br> Process of crop improvement - arificial hybridisation
7112.

Question : The birds which are reared for meat purpose are called :

Answer»

Layers
BROILERS
Cocks
Hen

SOLUTION :Broilers
7113.

Question : Teacher, pointing to a forest said " Long back, this place was a pond". This gradual change is an example of

Answer»

SECONDARY succession
Xerarch succession
Pioneer species
Hydrarch succession

Answer :D
7114.

Question : The biomass available for consumption to heterotrophs and rate of formation of new organic matter by consumers are defined as

Answer»

GROSS primary productivity and net primary productivity respectively 
Net primary productivity and gross primary productivity respectively 
Gross primary productivity and SECONDARY productivity respectively 
Net primary productivity and secondary productivity respectively 

SOLUTION :Net primary productivity and secondary productivity respectively
7115.

Question : Teacher pointing to a forest said "long back, this place was a pond". This gradual change is an example of: (1) Secondary succession (2) Xerarch (3) Pioneer species (4) Hydrarch succession

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SOLUTION :HYDRARCH SUCCESSION
7116.

Question : The biological scissors of DNA are _____

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ligases
polymerases
endonucleases
transcriptases

Answer :C
7117.

Question : The biological scissors of DNA are ……….. .

Answer»

ligases
polymerases
endonucleases
transcriptases

Answer :C
7118.

Question : Te crossing of F_(1) hybrid with either of the parents is known as______________.

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ANSWER :BACK CROSS
7119.

Question : The biological scissors is …….. .

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RESTRICTION endonuclease
gyrase
DNA ligase
helicase

Answer :A
7120.

Question : Teacher asked Balan to write the principle of RNAi technology. Help him by describing the method.

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Solution :RNA interference technology: This METHOD involves silencing of a specific MRNA due to a complementary DSRNA molecule that binds to and prevents TRANSLATION of the mRNA
7121.

Question : The biological scissors is ………………….

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RESTRICTION ENDONUCLEASE
gyrase
DNA ligase
helicase

Solution :restriction endonuclease
7122.

Question : Identify the proper sequence.

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Species `RARR` Population `rarr` Community -BIOME
Population `rarr` Community `rarr` Species biome
Biome `rarr` Species `rarr` Community `rarr` Population
Community `rarr` Population `rarr` Biome `rarr` Species

Solution : Species `rarr` Population `rarr` Community -biome
7123.

Question : The biological clock measures the length at each night by the

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relative AMOUNT of red absorbing and far -red absorbing PHYTOCHROME present at dawn
amount of far -red absorbing phytochrome at dusk
relative amount of red absorbing and far -red absorbing phytochrome at mid day
rate at which are kind of phytochrome is CONVERTED to the other

Answer :A
7124.

Question : TDE geneis a

Answer»

GENE present on X-chormosome
Segmentof RNA
PROTEINACEOUS factor
Gene presenton Y-chormosome

ANSWER :D
7125.

Question : Taylor experiment on Vicia faba (faba bean) root tips using autoradiography demonstrates that

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DNA replication is continuous
DNA replicates in discontinuous manner
Chromosomes SHOW semiconservative replication of DNA
DNA replicates in CONSERVATIVE manner

Answer :C
7126.

Question : The biological middlemen SPAC is

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Atmosphere
Plant
Soil
Animals

Answer :B
7127.

Question : Taylor conducted the experiments to prove semiconservative mode of chromosome replication on

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Vinca rosea
Vicia FABA
DROSOPHILA melanogaster
E. COIL

SOLUTION :Vicia faba
7128.

Question : The biodiversity increases when one moves from the pioneer to the climax stage. What could be the explanation ?

Answer»

Solution :During ecological succession, it reaches to climax of primary stage, biodiversity increases or gets changed.
The effects of ecological succession is as follows:
(a) It brings changes in plants which affects food and various types of habitates of animals.
(b) As succession proceeds further changes came in type and number of trees, animals and decomposers.
(c) During primary or SECONDARY succession, at any time DISTURBANCE created either naturally or manmade like fire and deforestration which convert into previous stage inplace of definite stage of succession stage.

Moreover it can create new disturbance new stage which activate some species and removes or make them dull the some PRODUCERS consumers and decomposers species.
(d) As time passes it leads towards large trees. At its end jungle ecosystem is obtained SEQUENTIALLY reached permanent climax community.
(e) If environment is not changed then group reached at climax community.
(F) With passing time, desert habitat are changed into revenue mesophytic.
7129.

Question : TaypSach's Disease is due to the deficiency of

Answer»

Alkapton oxidase
Tyrosinase
`BETA`- D-N ACETYL hexosaminidase enzyme
Dihydroxy phenylanine hydroxylase

Answer :C
7130.

Question : Tay Sach's disease is caused by deficieny is

Answer»

Hexosaminidase
GLUCOCEREBROSIDASE
Glucocerebrosidase
Ceramidase

Solution :N//A
7131.

Question : The binding sites tRNA and amino acid respectively are :

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mRNA with DHU loop and AMINO acid with CCA END
mRNA with CCA end and amino acid with anti-codon
mRNA with anti-codon loop and amino acid with CCA end
mRNA with anti-codon loop and amino acid with DHU loop

Answer :C
7132.

Question : Taxonomy refers to :-

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PLANT CLASSIFICATION
Plant NOMENCLATURE
Plant AFFINITY
All the above.

Answer :D
7133.

Question : The hind brain consistsof corpora quadrigemina and crus cerebri

Answer»


Answer :The MID brain CONSISTS of CORPORA QUADRIGEMINA and CRURA cerebri
7134.

Question : Taxonomically a species is :-

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A GROUP of individual organisms with FUNDAMENTAL similarities
A group of INDIVIDUALS CAPABLE of interbreeding
A group of individuals LIVING together in a habitat
A group of individuals having same reproductive characters

Answer :A
7135.

Question : The bile duct and the pancreatic duct open together into the duodenum as the common____which is guarded by a sphincter called the_____

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ANSWER :Hepato PANCREATIC DUCT, SPHINCTER of ODDI
7136.

Question : Tautomerisation is seen in

Answer»

TRANSLOCATION
Inversion
Transition
Duplication

Answer :C
7137.

Question : The better yielding semi-dwarf rice varieties developed in India are ……….. .

Answer»

JAYA and Ratna
Kalyansona and Sonalika
Sharbati SONORA and Sonalika
Pusa and Lerma

Answer :A
7138.

Question : Taung baby is

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Dryopithecus
Australopithecus
Peking Man
Piltdown Man.

Solution :Aeon or Eon. Geological AGE consisting of ONE or more ERAS, viz., cryptozoic and phanerozoic. Phanerozoic aeon has three eras -palaeozoic, MESOZOIC and coenozic.
7139.

Question : The biggest constraint of plant breeding is -

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Availability of desirable GENE in the CROP and its wild relatives
INFRASTRUCTURE
TRAINED manpower
Transfer of genes from unrelated sources

Solution :The biggest CONSTRAINT of plant breeding is availability of desirable gene in the crop and its wild relatives.
7140.

Question :'Tauimuoaby' was discovered by

Answer»

C. Fuhlrott
Mac Gregor
Raymond Dart
Donald Johanson

Answer :C
7141.

Question : TARI

Answer»

SOLUTION : INDIAN AGRICULTURAL RESEARCH INSTITUTE
7142.

Question : The best way to increase the yield of crop :-

Answer»

To sow SEED of high YIELDING and DISEASE resistant varieties.
By BETTER management practice
To increase acrage under cultivation
To remove weeds from fields

Answer :A
7143.

Question : Taq- polymerase used for amplification of DNA is related to

Answer»

HYBRIDOMA TECHNIQUE
PCR-technique
Gene CLONING
r-DNA TECHNOLOGY

SOLUTION :PCR-technique
7144.

Question : The best milch breed in the world is :

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Chittagong
Deoni
Holstein-Friesian
Sindhi

Answer :C
7145.

Question : Target cells do not respond to insulin in non insulin dependent diabetes mellitus .

Answer»

Solution :Correct STATEMENT: TARGET CELLS do respond to INSULIN in Non Insulin dependent DIABETES mellitus.
7146.

Question : The best material for demonstrating streaming movements of protoplasm within living cells is

Answer»

staminal hairs of Tradescantia
onion PEELINGS
PITH CELLS of angiosperms
root hairs of Tradescantia

ANSWER :A
7147.

Question : Tapeworm infesting intestine of animals obtain their nutrition

Answer»

by INGESTING food particles through their suckers
by scraping the INTESTINAL walls with their suckers
by preparing food in their own bodies
by absorption of LIQUID food through their general body

Answer :D
7148.

Question : Tapewarm infection occurs amongst vegetarians through

Answer»

IMPROPER COOKED measiy pork
improprly WASHED RAW vegetables
soil
contamination of water

Answer :B
7149.

Question : The central dogma in molecular biology was proposed by

Answer»




ANSWER :A
7150.

Question : Tapewarm infection results in

Answer»

indigestion
abdominal pain
anorexia
all of above

Answer :D