DNA and RNA are similar to each other because both
have similar sugars
are nucleotide polymers
have similar pyrimidines
are double stranded
None of these
A simple technique has been developed in India by using the following organisms as biofertilizers
Azotobacter and Rhizobium
Azolla and Azotobacter
Azolla and Rhizobium
Azotobacter and Nostoc
None of these
A sclerotiurn refers to a modified mycelium which is
an underground structure
a food storing organ
a conidial type
a hard resting body
None of these
A phenomenon wherein a single gene has more than one phenotypic effect is known as
Pleiotropism
Epistasis
Hypostasis
Duplicate genes
None of these
Which one of the following is a rich source of protein?
Scytonema
Spirulina
Spirogyra
Stigonema
None of these
Glycolysis is also known as
Gluconeogenesis
EMP Pathway
Hexose monophosphate shunt
Photorespiration
None of these
Rate of photosynthesis is higher in light.
White
Red
Green
Blue
None of these
The fruit ripening hormone is
Abscisic acid
Cytokinin
Ethylene
Gibberellin
None of these
The largest herbarium in India is located at
New Delhi
Dehradun
Kolkata
Pune
None of these
International Rice Research Institute is in
Hyderabad
Cuttack
Kenya
Manila
None of these
Obligate anaerobic bacteria can
grow without oxygen and produce high energy
grow without oxygen and produce low energy
have a fermentative metabolism and a respiratory chain
grow with or without oxygen and produce medium energy
None of these
Which one of the following is the correct food chain?
Algae – insects – frog- peacock – snake
Algae – frog – insects snake – peacock
Algae – frog – insects – peacock – snake
Algae – insects – frog – snake – peacock
None of these
In paddy, the type of inflorescence is said to be
Raceme
Panicle
Thyrsus
Cyathium
None of these
Botanical name of Pearl millet (Bajra) is
Avena sativa
Zea mays
Eleusine coracana
Pennisetum typhoides
None of these
Which is the matching set in classification?
Neries, planaria, roundworm, earthworm
Millipede, crab, centipede, cockroach
Starfish, jellyfish, cuttlefish, octopus
Sea-urchin, lobster, leech, locust
None of these
The insects excrete in the form of uric acid because
most of them are terrestrial
the circulatory system is open
the blood is colourless
most of them are aquatic
None of these
Measurement of the rate of oxygen consumption in unit volume of water over a period of time is carried out to determine
Fermentation
Biogas generation
Biosynthetic pathway
Biological oxygen demand
None of these
Biosphere is made up of
organism
organism and lithosphere
organism, lithosphere and atmosphere
organism, lithosphere, atmosphere and hydrosphere
None of these
Sudden mass death of fishes from oxygen depletion is more likely in the
Eutrophic lakes
Oxalotrophic lakes
Oligotrophic lakes
Mesotrophic lakes
None of these
The sanctuary having maximum number of rare animals is
Kaziranga National Park
Corbett National Park
Manas National Park
Dudhwa National Park
None of these
The famous ‘Chipko Movement’ is associated with
S.L. Bahuguna
Indira Gandhi
Jawaharlal Nehru
H.N. Bahuguna
None of these
Red data book is famous for
Extinct animals
Endangered animals and plants
Endangered animals
Important wildlife
None of these
Bottom layer of deep fresh water habitat is
Hypolimnion
Epilimnion
Thermocline
Metalimnion
None of these
International Convention on Biological Diversity was ratified in the year
1971
1994
1973
1990
None of these
Which is considered as biological paradise in India?
Gulf of Mannar
Nilgiri Bioreserve
Sundarbans
Nanda Devi
None of these
National Bureau of Fish Genetic Resources (NBFGR) is located in
Chennai
New Delhi
Lucknow
Bangalore
None of these
Which of these is often called as ‘cell organiser’?
Nucleus
Centriole
Nucleolus
Ribosome
None of these
The power house of the cell is
Nucleus
Ribosome
Mitochondria
Lysosome
None of these
Hardness of woody tissue is due to
Silica
Lignin
Cellulose
Suberin
None of these
Pea seeds will germinate best if soaked in a jar containing
H2
02
N2
CO2
None of these
The shape of the growth curve is usually
Inverted bell Linear
Sigmoid
Zig-Zag
None of these
The forces that can change the frequency of an allele in a population are
forward mutation, gene conversion, neutral evolution and recombination
selection, mutagenesis, migration, inbreeding and random genetic drift
dominance, family selection, fitness and diversification
(4)gene interaction, gene transfer, gene mutation and outbreeding
None of these
The anticodon region is present in
r-RNA
hn-RNA
m-RNA
t-RNA
None of these
In reptiles and birds, nitrogen is excreted in the form of
Urea
Uric acid
Ammonia
Lipids
None of these
Which of the following techniques are used in assaying monoclonal antibodies?
Flow cytometry
PAGE
HPLC
Scintillation counter
None of these
Which of the following synthetic polypeptides will form a triple helix?
(Pro-Gly)n
(Plie-Gly-Gly)n
(Pro-Gly-Gly)n
(Gly-Pro-Pro-Gly)n
None of these
World Health Organisation (WHO) announced the eradication of small pox as a disease in the year
1988
1986
1977
1979
None of these
A disease that attacks many in a community simultaneously is
an epidemic
a noscomial infection
a secondary infection
a bacteremia
None of these
The term “Microbiology” was coined by
Antonie van Leeuwenhoek
Robert Koch
Louis Pasteur
Julius Richard Petri
None of these
Tumour causing viruses are known as
Oncogenic viruses
Para viruses
Tungro viruses
Variola viruses
None of these
Red orange colour in saffron is due to
Xanthophyll
Chlorophyll
Crocetin
Polyphenols
None of these
Choose the correct answer. Beaten rice is also known as
Flaked rice
Polished rice
Puffed rice
Popped rice
None of these
Spice bag is usually used in the processing of
Sauce
Jam
Pickle
Nectara
None of these
Cereals are
deficient in lysine and rich in methionine
rich in lysine and deficient in methionine
rich in lysine and methionine
deficient in lysine and methionine
None of these
Roasting coffee beans improve the content of
Pantothenic acid
Niacin
Riboflavin
Thiamine
None of these
Annual
loss of agricultural produce in India is more due to different factors.
Find out the factors in correct sequence based on the higher degree of
loss to lower degree.
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