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401.

Question : Which enzyme is firstly attached in the initiation of transcription ?

Answer»

TRANSCRIPTASE
POLYMERASE
Ligase
RNA polymerase

SOLUTION :Transcriptase
402.

Question : Which enzyme is added in detergent for for removing oily stains from laundry?

Answer»

Lipase
Pectinase
Proteinase
Zymase

Answer :A
403.

Question : Which enzyme inhibitor, increases km but no effect on velocity maximum ?

Answer»

Non-competitive
Competitive
Irreverssible inhibitor
All the above

Answer :B
404.

Question : Which enzyme cuts DNA at specific positions

Answer»

Restriction ENZYMES
Ligase
EXONUCLEASE
ALKALINE PHOSPHATE

Solution :Restriction enzymes
405.

Question : Which enzyme converts trypsinogen and chymotrypsinogen into trypsin and chymotrypsin respectively?

Answer»


ANSWER :Enterkinase
406.

Question : Which enzyme converts arginine into urea and ornithine in ornithine cycle?

Answer»


ANSWER :ARGINASE
407.

Question : Which enzyme converts glucose-6-phosphate into fructose-6-phosphate ?

Answer»

SOLUTION :The ENZYME phosphogluco ISOMERASE CONVERTS glucose-6-phosphate into fructose-6-phosphate.
408.

Question : Which enzyme catalyzes the reaction between CO_2 and H_2 O that produces carbonic acid ?

Answer»


ANSWER :CARBONIC enhydrase
409.

Question : Which enzyme accepts O_(2) during photorespiration process ?

Answer»

PEP carboxylase
Transaminase
Pyruvic dehydrogenase
RuBisCo

Answer :D
410.

Question : Which endocrine gland is loacated on kidney?

Answer»


ANSWER :Adrenal/suprarenal
411.

Question : Which endangered species is found in Vansada National Park ?

Answer»

lesser-florican
BLACK buck
safed MUSLI
PAINTED FROG

SOLUTION :painted frog
412.

Question : Which endocine gland is stimulated by adrenocorticotropic hormone(ACTH) ?

Answer»


ANSWER :ADRENAL glands/Suprarenal
413.

Question : Which embryonic germ layer gives to central nervous system?

Answer»

Solution :The embryonic ECTODERM gives RISE to central nervous SYSTEM.
414.

Question : Which endangered animal is the source of world's finest,lightest,warmest and most expensive wool,i.e. the shahtoosh?

Answer»

Nilgai
Cheetal
Kashmiri goat
Chiru

Answer :D
415.

Question : Which elements of the phloem become dead at maturity ?

Answer»

SIEVE TUBE elements
Companion cells
Sieve cells
Phloem fibres

Answer :D
416.

Question : which elements are required for photolysis of H_(2)O ?

Answer»

ZN and Mn
Mn and Cl
Cl and Mg
Fe and Mn

Answer :B
417.

Question :Which elements are essential for the photophosphorylation ?

Answer»

MG and P
Zn and I
K and Cl
Mn and Cl

Answer :D
418.

Question : Which element plays an important role in nitrogen fixation ?

Answer»

Mn
Mo
Zn
Cu

Answer :B
419.

Question : Which element or mineral is essential for electron transport system in both cristae and thylakoids ?

Answer»

Iron
Calcium
Potassium
Magnesium

Answer :A
420.

Question : Which element of the angiosperm is long, tube like and associated with the companion cell ?

Answer»

SIEVE cell
Sieve TUBE element
Tracheid
Vessel element

Answer :B
421.

Question : Which element of the phloem stores food material and other substances like resins, latex and mucilage ?

Answer»

SIEVE cells
Albuminous cells
Companion cells
Phloem parenchyma

Answer :D
422.

Question : Which element mainly occurs in the middle lamella ?

Answer»

Ca
Mg
Na
P

Answer :A
423.

Question : Which element is responsible for causing soil salinity ? At what concentration does the soil become saline ?

Answer»

Solution :• Soil SALINITY is the salt content in the soil. Salts are a natural component in soils and water.
• The ions responsible for salination are : `Na^(+), K^(+), Ca^(2+), MG^(2+) and Cl^(-)`. Soil becomes SALINE at a high soluble salts concentration (0.2% or above) or 500 ppm sodium (sodic soil).
424.

Question :Which element is present negligible in human body?

Answer»

Hypertension
ARTERIOSCLEROSIS
HEART failure
ANGINA

Answer :D
425.

Question : Which element is located at the centre of the porpyrin ring in chlorophyll?

Answer»

Manganese and chlorine
Calcium
MAGNESIUM and molybdenum
Potassium

Solution :Magnesium is atthe CENTRE of the PORPHYRIN ring in CHLOROPHYLL. The GENERAL structure of chlorophyll was elucidated by hand fischer in 1940.
426.

Question : Which element is absorbed by mycorrhiza ?(A) Nitrogen(B) Sulphur(C) Manganese(D) Phosphorus

Answer»

Nitrogen
Sulphur
MANGANESE
PHOSPHORUS

SOLUTION :Phosphorus
427.

Question : Which effect is having long time and extreme?

Answer»

INNATE immunity
Secondary immunity
PRIMARY immunity
Primary EFFECT

SOLUTION :Primary effect
428.

Question : Which ecosystem shows maximum genetic diversity ?

Answer»

TROPICAL RAIN forests
Temperate forest
Coniferous forests
Subtropical forests

Answer :A
429.

Question : Which ecosystem has the maximum biomass ?

Answer»

FOREST ECOSYSTEM 
GRASSLAND ecosystem 
POND ecosystem 
Lake ecosystem 

Solution :Forest ecosystem
430.

Question : Which economist influenced Darwin for his theory of Natural Selection?

Answer»


ANSWER :MALTHUS
431.

Question : Which drug is used to prevent cereal diseases and is prepared by pseudomonas bacteria ?

Answer»

Quantam-40
Quantum-400
Quantum-40,000
Quantum-4000

SOLUTION :Quantum-4000
432.

Question : Which drug is used as medicine to help patients cope with depression and insomnia ?

Answer»

Morphine
Amphetamines
Barbiturate
both (b) and (c )

Solution :DRUGS like barbiturates, amphetamines, BENZODIAZEPINES, lysergic acid diethyl amides (LSD), and other similar drugs are NORMALLY USED as medicines to help patients cope with mental ILLNESSES like depression and insomnia.
433.

Question : Which drug is produced through recombinant technology for cancer treatment ?(A) Insulin(B) Interferon(C) HGH(D) TSH

Answer»

INSULIN
INTERFERON
HGH
TSH

SOLUTION :Interferon
434.

Question : Which drug is being excessively taken by some sports persons nowadays?

Answer»

Opioids
Barbiturates
Cannabinoids
Lysergic acid diethy amides (LSD)

Solution :Cannabinoids bring about EUPHORIA,, excitement, increased energy sometimes uncontrolled LAUGHTER and dilation of PUPIL of eys. These days cannabinoids are TAKEN by some SPORTS persons.
435.

Question : Which drug interferes with neurotransmitter dopamine?

Answer»

Solution :Cocaine or coca alkaloid OBTAINED from ERYTHROXYLUM coca interferes with neurotransmitter DOPAMINE.
436.

Question : Which does not come under Archaebacteria?

Answer»

Methanogen
Halophiles
Mycoplasma
Thermoacidophiles

Answer :C
437.

Question : Which DNA molecule has higher melting temperature?

Answer»




ANSWER :B
438.

Question : Which district of Tamil Nadu is the World's largest wholesale turmeric dealer?

Answer»


ANSWER :ERODE
439.

Question : Which disorder is not related with smoking? (a) Lung cancer (b) Bronchitis (c) Emphysema (d) Coronary heart disease (e) Gastric ulcer (f) Urinary bladder cancer (g) Throat cancer

Answer»

a, b, E, g
a, b, c, F, g
c, d, f
None of these (all are related)

ANSWER :D
440.

Question : Which diseases is caused in human by radioactive waste ?(A) AIDS(B) Cholera(C) Small pox(D) Cancer

Answer»

AIDS
Cholera
Small pox
Cancer 

ANSWER :D
441.

Question : Which diseases are easily transmitted from one person to another ?

Answer»

INFECTIOUS DISEASE
Non-infectious disease
Normal disease
Harmful disease

Solution : Infectious disease
442.

Question : Which disorder is commonly called silent killer?

Answer»

SOLUTION :Hypertension is the DISORDER that is COMMONLY called silent KILLER.
443.

Question : Which disorder can disappear with rest ?

Answer»

CAD
Angina pectoris
Hypertension
Heart failure

Answer :B
444.

Question : Which disease occurs by filarial worm ?

Answer»

RING worm
Pneumania
ELEPHANTIASIS
MALARIA

SOLUTION :Elephantiasis
445.

Question : Which disease spreads by sputum of the patients ?

Answer»

PNEUMONIA
TYPHOID
AIDS
Malaria

Solution :Pneumonia
446.

Question : Which disease is spread by mosquito but does not occur by virus ?

Answer»

YELLOW fever
Dengue fever
Meningitis
FILARIASIS

SOLUTION :Filariasis
447.

Question : Which disease is not cured by triple antigen ?

Answer»

TETANUS
Diptheria
Whooping cough
Typhoid

Answer :D
448.

Question : Which disease does not occur due to smoking ?

Answer»

malaria
LUNG CANCER
throat inflammation
blisters in STOMACH

SOLUTION :lung cancer
449.

Question : Which disease is indicated if urine contains bile pigment?

Answer»


ANSWER :Juandice
450.

Question : Which disease is associated with the eating of Hg contaminated fishes ?

Answer»


ANSWER :A::D