Clotting of blood is
a chain reaction
reversible reaction
reflex action
no reaction
Correct Answer :
A. a chain reaction
Related Questions
Which of the following organelles is known as the 'power House' of the cell?
Golgi Bodies
Ribosomes
Mitochondria
None of these
Wallace's line is a line
drawn by Darwin
across the mountains
between two zoo-geographical areas
between different classes of animals
The theory of 'jumping genes' was propounded by
Gregor John Mendel
Thomas Hunt Morgan
Barbara McClintock
Watson and Crick
What are oncogenes?
a dominant gene
a set of genes which produce cancer
a gene present in the X-chromosomes causing haemophilia
a recessive gene
The mode of nutrition in which particulate food is devoured is
holozoic
holophytic
saprophytic
parasitic
The layer of stagnant water in which light penetrates is called
Aphotic
Euphotic
Epilimnion
Disphotic
The plant hormone which promotes ripening of fruits is
auxin
ethylene
gibberellin
cytokinin
Antibodies are formed in
lymph nodes
red bone marrow
spleen
liver
Which among, the following is a solid lubricant?
carbohydrate
graphite
protein
starch
Which among the following cows give maximum milk yields?
Jersey
Holstein
Red Sindhi
Sahiwal
The Green Revolution in India owes much to
MS Swaminathan
TS Venkataraman
Norman Borlaug
Prime Minister
Vitamins A and C are predominantly present in
brinjal
lady's finger
potato
tomato
The cortex of human brain normally consists of
five billion, two hundred million cells
nine billion, two hundred million cells
six billion, two hundred million cells
eight billion, two hundred million cells
Which of the following diseases is considered as completely eradicated from India, as no case of the same has been reported in last one year?
Polio
Tuberculosis
Cancer
Swine flu
Athlete's Coot is the common name for the fungal disease
Tinea pedis
Tinea cruris
Tinea corporis
Tinea capitis
When the earth was formed it had an atmosphere with
Hydrogen, Oxygen and Nitrogen
Water Vapour, Hydrogen and Oxygen
Oxygen, Carbondioxide and Nitrogen
Water Vapour, Ammonia and Methane
Dinosaur is a/an
Fish
Amphibian
Reptile
Bird
Cancer is induced by certain viruses called
poxviruses
adenoviruses
oncogenic viruses
herpesviruses
Rh+ blood is due to genes which are
dominant
recessive
codominant
neutral
Viruses have
DNA only
RNA only
Either DNA or RNA
Both DNA and RNA
Bird nu is a disease which affects and spreads through
Cattle
Sheep
Prawn
Poultry
Blood is a kind of
epithelial tissue
connective tissue
nervous tissue
cartilage
The specific gravity of blood
lower than water
higher than water
same as water
many times that of water
In one minute normally the heart beats
60 times
80 times
100 times
72 times
Which one of the ecosystems Is the largest in the world?
forests
rivers
deserts
oceans
Eosinophil™s are stained by
alkaline dyes
acidic dyes
neutral dyes
vital stains
The white blood corpuscles the body because they are popularly called soldiers of
march at a regular pace
appear uniform
defend the body
are disciplined
Which of the following cell organelles play the most significant role in protein synthesis?
Lysosome and Centrosome
Endoplasmic reticulum and Ribosome
Golgi apparatus and Mitochondria
Lysosome and Mitochondria
Antisnake venom is prepared by
Pasteur institute
Hoffkine's institute
Birla's institute
Indian Science Institute
Organisms that feed on the excreta of other organisms are called
autotrophs
heterotrophs
coprophagous
saprotrophs