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Biodiversity and conservation

What parameters are used for Tiger Census in our country’s National parks and Tiger reserves
A. Pug marks only
B. Pug marks and fecal pellets
C. Fecal pellets only
D. Actual head counts

B. Pug marks and fecal pellets

Biotechnology Principles and Processes

In EcoRI, the Roman number indicates
A. Genus
B. Species
C. Strain no
D. The order of the enzyme isolated

D. The order of the enzyme isolated

Biotechnology and Its Applications

Bt in the Bt cotton represents
A. Biotechnology
B. Bacillus thuringiensis
C. Bacterial toxoid
D. Bio transformer

B. Bacillus thuringiensis

Biotechnology and Its Applications

In agarose gel electrophoresis DNA molecules are separated on the basis of their
A. Charge only
B. Size only
C. Charge to size ratio
D. Both charge and size

D. Both charge and size

Biotechnology and its Applications

To introduce alien DNA to plant cell suitable method is.
A. Micro injection
B. Biolistics
C. Disarmed pathogen
D. Transformation

B. Biolistics

Biotechnology and its Applications

The DNA polymerase enzyme used in PCR technology is obtained from
A. E. coli
B. Agrobacterium tumefaciens
C. Thermus aquaticus
D. Salmonella typhi

C. Thermus aquaticus

Biotechnology and its Applications

SCID disease is caused by deficiency of enzyme
A. Adenosine transaninase
B. Adenosine deaminase
C. Guanosine transaminase
D. Guanasine deaminase

B. Adenosine deaminase

Biotechnology and its Applications

Bt-Cotton is an example of a transgenic crop. In this 'Bt' refers to:
A. Bacillus tuberculosis
B. Biotechnology
C. Bacillus thuringiensis
D. Bordetella thuringiensis

A. Bacillus tuberculosis

Biotechnology: Principles and Processes

The Taq polymerase enzymes is obtained from
A. Bacillus subtilis
B. Thermus aquaticus
C. Pscudomonas putida
D. Thiobacillus ferroxidans

B. Thermus aquaticus

Biotechnology: Principles and Processes

Stain used in Agarose gel electrophoresis
A. Acetocarmine
B. Saffranin
C. Cyanogen bromide
D. Ethidium bromide

D. Ethidium bromide

Ecosystem

According to Robert Constanza and his colleagues. The cost of ecosystem service, like soil formation accounts for about
A. 10%
B. 50%
C. 6%
D. None of them

B. 50%

Ecosystem

Select the correct sequence of steps in the process of decomposition
A. Fragmentation → Leaching → Catabolism → Humification → Mineralisation
B. Leaching → Catabolism → Humification → Mineralisation → Fragmentation
C. Catabolism → Humification → Mineralisation → Fragmentation → Leaching
D. Humification → Mineralisation → Fragmentation → Leaching → Catabolism

A. Fragmentation → Leaching → Catabolism → Humification → Mineralisation

Ecosystem

The process of breakdown of detritus by detritivores is
A. Mineralisation
B. Fragmentation
C. Leaching
D. Humification

B. Fragmentation

Ecosystem

The breakdown of detritus into smaller particles by Earthworm is a process called.
A. Catabolism
B. Mineralization
C. Fragmentation
D. Humification

C. Fragmentation

Ecosystem

Pyramid of energy is
A. Always inverted
B. Always uprighted
C. Spindle shaped
D. Both uprighted and inverted depending uponecosystem

B. Always uprighted

Ecosystem

Climax community is in a state of
A. Non equilibrium
B. Equilibrium
C. Disorder
D. Constant change

B. Equilibrium

Ecosystem

Which organism are not given any place in ecological pyramid
A. Herbivore
B. Producers
C. Saprophytes
D. Carnivore

C. Saprophytes

Ecosystem

The amount of nutrients in the soil such as carbon, nitrogen phosphorus, calcium etc, present in the soil at any given time is referred to as:
A. Standing state
B. Standing crop
C. Biomass
D. Succession

A. Standing state

Ecosystem

The process of breakdown of complex organic matter into inorganic substances is
A. Mineralisation
B. Catabolism
C. Decomposition
D. Leaching

B. Catabolism

Ecosystem

Reservoir of phosphorus cycle.
A. Earth's crust
B. Water
C. Atmosphere
D. Living organisms

A. Earth's crust

Ecosystem

The percentage of photosynthetically active radiation (PAR) in the incident solar radiation
A. 100%
B. 50%
C. 1.5%
D. 2.10%

B. 50%

Ecosystem

An inverted pyramid of biomass can be found in which ecosystem
A. Forest
B. Marine
C. grassland
D. Tundra

B. Marine

Ecosystem

Which is correct sequence in the food chain ?
A. Grass → wolf → deer → Buffalo
B. Bacteria → Grass → Rabbit → Buffalo →
C. Grass → Insect → Bird → Snake
D. Grass → Snake → Insect → Deer

C. Grass → Insect → Bird → Snake

Ecosystem

Example for primary consumer
A. Goat
B. Frog
C. Snake
D. Snail

A. Goat

Environmental Issues

BOD of wastewater is estimated by measuring the amount of
A. Total organic matter
B. Biodegradable organic matter
C. Oxygen evolution
D. Oxygen consumption

A. Total organic matter

Environmental Issues

Which one of the following plant is known as "Terror of Bengal"
A. Bryophyllum
B. Nymphea
C. Parthenium
D. Eichhornia

D. Eichhornia

Evolution

Viable seeds of Phoenix dactylifera discovered during archeological excavation at King Herod's palace near the dead sea is.
A. 2000 years old
B. 200 years old
C. 10,000 years old
D. 1000 years old

A. 2000 years old

Evolution

Darwin's finches are a good example of :
A. Industrial melanism
B. Adaptive radiation
C. Connecting link
D. Convergent evolution

B. Adaptive radiation

Evolution

Analogous organs arise due to
A. Convergent evolution
B. Natural selection
C. Divergent evolution
D. Genetic drift

A. Convergent evolution

Evolution

Fossil evidences of evolution is called
A. Anatomy
B. Embryology
C. Morphology
D. Palentology

D. Palentology

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