Prions are composed largely of
DNA
proteins
RNA
None of these
Correct Answer :
B. proteins
Related Questions
The aphotic zone means that light is
always present
present during day
always absent
present during night
The olfactory area is concerned with
smell
sight
hearing
speech
Nekton are those organisms
which cannot be netted
which are independent of tides and waves
which have long necks
None of the above
Which one of the following was probably absent in the atmosphere at the time of origin of life?
Ammonia
Oxygen
Hydrogen
Carbon
The disease in which blood clotting does not take place is known as
Xerophthalmia
Haemopoeisis
Haemophilia
Haemoerythrin
Who coined the term gene?
Mendel
Devries
Jacob and Monod
Johanson
Sex linked genes are carried by
X-chromosomes
Y-chromosomes
different part of X- and Y-chromosomes
autosomes
Tuberculosis is caused by
tobacco
tubers
bacteria
virus
Modern classification of the living world recognise ___________ kingdoms.
two
three
four
five
The counting of RBC's can be performed by
Haemocytometer
Haemoglobinometer
Clinostat
Thermometer
When a movement of a plant organ is stimulated by contact with an object, it is termed
heliotropism
geotropism
haptotropism
gardening
Which one of the endocrine glands disappears after puberty?
Thyroid
Thymus
Adrenals
Pituitary
The cellular and molecular control o( programmed cell death is known as
Apoptosis
Ageing
Degeneration
Necrosis
Kangaroo is one of the animals popularly called as
egglaying
pouched
placental
Volant
Ecology of a population is known as
demecology
synecology
autecology
space ecology
The blood of cockroach shows the following characteristics except one. Mark it.
It serves to distribute nutrient directly to every part of the body
It contains several kinds of corpuscles without haemoglobin
It collects metabolic wastes
It carries oxygen
Which of the following organelles is known as the 'power House' of the cell?
Golgi Bodies
Ribosomes
Mitochondria
None of these
Savannah is
grass land
desert
forest
snow clad mountains
Which of the following diseases is not caused by a virus?
Cancer
Rabies
AlDS
Severe Acute Respiratory Syndrome (SARS)
The saliva contains an enzyme called
ptyalin
pepsin
trypsin
erepsin
Pacemaker is the
Sinu-auricular node
Auriculo-ventricular node
Bundle of His
Purkinje fibres
The valve between the right auricle and right ventricle is called
Tricuspid
Bicuspid
Monocuspid
Semilunar
Which one of the following is viral disease?
Syphilis
Influenza
Lock Jaw
Typhoid
Which of the following contains the highest protein content per gram?
Groundnut
Soyabean
Apple
Wheat
Green plants synthesise carbohydrates by the
holozoic method
holophytic method
saprophytic method
parasitic method
India's first transgenic crop was
Potato
Brinjal
Sugarcane
Bt cotton
Wallace's line is a line
drawn by Darwin
across the mountains
between two zoo-geographical areas
between different classes of animals
Antibodies are formed in
lymph nodes
red bone marrow
spleen
liver
Fledgling is a term often used to denote the young one of a
bird
fox
dog
man
Vestigeal organs are those which are
fully formed and functional
much reduced but functional
much reduced and functionless
fully formed but functionless