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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

The annual net primary productivity of whole biosphere is approximately
A. 55 billion tons
B. 115 billion tons
C. 150 billion tons
D. 170 billion tons

Paleontological evidences of evolution refer to the
A. Development of embryo
B. Homologous organs
C. Fossils
D. Analogous organs

Which prehistoric man started to use hides to protect their body and buried their dead bodies?
A. Neanderthal man
B. Homo sapiens man
C. Homohabilis man
D. Homo erectus man

Brain capacity of Homo habilis is
A. 1400cc
B. 1000cc
C. 650-800cc
D. 900cc

The production of antibodies in response to the antigens is by
A. B-lymphocytes
B. T-lymphocytes
C. Monocytes
D. Phagocytes

Widal test is conducted for detection of
A. Cancer
B. Pneumonia
C. Malaria
D. Typhoid

Opiods are obtained from :
A. Erythroxylum coca
B. Papaver somniferum
C. Cannabis sativa
D. Datura

The substance which causes a definite change in genes is called
A. Toxin
B. Alkaloid
C. Cytotoxin
D. Mutagen

The disease chikungunya is transmitted by
A. Housefly
B. Aedes mosquitoes
C. Cockroach
D. Female Anopheles

Which of the following is a pair of viral diseases
A. Ringworm, AIDS
B. Amoebic dysentery, Common cold
C. Common cold, AIDS
D. Typhoid, Pneumonia

Which of the following is the
only sexually transmitted disease
A. Pneumonia
B. Haemophilia
C. Malaria
D. Gonorrhea

The type of antibody produced during an allergic response:
A. IgA
B. IgE
C. IgG
D. IgM

The disease caused by a protozoan parasite is
A. Ascariasis
B. Filariasis
C. Amoebiasis
D. Ringworms

Number of spermatozoa produced from a single Primary spermatocyte in spermatogenesis is
A. One
B. Two
C. Three
D. Four

Corpus luteum produces
A. Estrogen
B. Testosterone
C. Progesterone
D. None

Spermiation is the process of the release of sperm from
A. Seminiferous tubules
B. Vas deferens
C. Epididymis
D. Prostate gland

Which one of the following is not male accessory gland?
A. Seminal vesicle
B. Prostate
C. Bulbourethral gland
D. Epididymis

The layer of uterine wall that contracts during parturition:
A. Endometrium
B. Myometrium
C. Perimetrium
D. Epimetrium

Sperms are produced in
A. Vas deferens
B. Prostate gland
C. Interstitial cells
D. Seminiferous tubules

In which part of human female reproductive system fertilization take place
A. Ovary
B. Uterus
C. Ampullary isthmus region
D. Cervix

Human chorionic gonadotropin is produced by
A. Ovary
B. Follicle
C. Placenta
D. Liver

Embryo’s heart s developed during
A. Fourth trimester
B. Third trimester
C. Second trimester
D. First trimester

The wider part of the oviduct is called
A. Ampulla
B. Isthmus
C. Fimbriae
D. Infundibulum

Which of the following hormone helps in Parturition.
A. Progesterone
B. estrogen
C. thyroxine
D. Oxytocin

The bacteria present in the rumen of the cattle and it helps in break down of cellulose
A. Methano bacterium
B. Cyano bacter
C. Azato bacter
D. Rhizobium bacteria

Biofertilisers are organisms that enrich the nutrient quality of the soil. Main source of biofertilizers is
A. Methanabacterium
B. Bacillus thuringiensis
C. Azotobactor
D. Aspergillus niger

Large holes in Swiss cheese are formed due to production of a large amount of co2 by
A. Propionobacterium sharmonii
B. Mycobacterium
C. Saccharormyces
D. Penicillium

A typical example for mycorrhiza forming fungus is :
A. Penicillium
B. Glomus
C. Aspergillus
D. Trichoderma

Aspergillus niger belongs to
A. Bacteria
B. Fungi
C. Viruses
D. Algae

A bacterium that is used in the industrial production of acetic acid
A. Aspergillus niger
B. Clostridium butylicum
C. Acetobacter aceti
D. Lactobacillus

Which one of the following microorganisms is used for the production of citric acid in industries?
A. Lactobacillus bulgaricus
B. Penicillium curriculum
C. Aspergillus niger
D. Rhizopus nigricana

Statins are produced by the yeast.
A. Monascus purpureus
B. Saccharomyces cerevisiae
C. Trichoderma polysporum
D. Aspergillus niger

Information transfer from RNA to DNA is called
A. Replication
B. Translation
C. Transcription
D. Reverse transcription

The adapter molecule is :
A. m-RNA
B. r-RNA
C. t-RNA
D. hn-RNA

In a DNA strand the nucleotides are linked together by
A. Glycosidic bond
B. Phosphodiester bond
C. Peptide bond
D. Hydrogen bond

Clover leaf model of tRNA is
A. Primary structure
B. Secondary structure
C. Tertiary structure
D. Quaternary structure

A nucleoside differs from a nucleotide, where it lacks the
A. Nitrogen base
B. Pentose sugar
C. Phosphate group
D. Hydroxyl group

In DNA replication, discontinuously synthesized DNA fragments are later joined by
A. DNA polymerase
B. DNA ligase
C. DNA Gyrase
D. DNA

In the equation dN/dt=rN, the letter 'r' denotes
A. Intrinsic rate of natural increase
B. Carrying capacity
C. Population density
D. Respiration losses

The process in which the reproductive fitness of one species is significantly lower in the presence of another species is
A. Predation
B. Competition
C. Parasitism
D. Mutualism

Cuckoo lays its eggs in the nest of crow is an example of :
A. Mutualism
B. Brood parasitism
C. Commensalism
D. Predation

Presence of a special photosynthetic pathway (CAM) is seen in
A. Cactus
B. Banyan
C. Rose
D. Banana

The population interaction in which one species get benefit and other one is neither benefitted nor harmed
A. Mutualism
B. Commensalism
C. Amensalism
D. Parasitism

According to Allen's rule the mammals from colder climate have
A. Longer ears and shorter limbs
B. Shorter ears and shorter limbs
C. Shorter ears and longer limbs
D. Longer ears and longer limbs

Animal that can tolerate wide range of Salinity are called
A. Euryhaline
B. Stenohaline
C. Anadromus
D. Catadromus

To avoid summer related problems like heat and desiccation some snails and fishes go into
A. Hibernation
B. Diapause
C. Aestivation
D. Dormancy

Brood parasitism is seen in
A. Birds
B. Human
C. Reptiles
D. Fishes

Example for Mutualism is
A. Wasp and Fig plant
B. Orchid and Mango plant
C. Tortoise and goat
D. Ticks and dog

Under unfavourable conditions many Zooplanktons species in lakes known to enter a suspended development stage is called
A. Aestivation
B. Diapause
C. Heibernation
D. Sporulation

Pseudocopulation (Sexual deceit) is found in
A. Amorphophallus
B. Ophry’s orchid
C. Fig
D. Rafflatia

The formula of exponential population growth curve is
A. dN/dt = rN
B. dt/dN = rN
C. dN/rN = dt
D. rN/dN =dt

Natality refers to
A. Death Rate
B. Birth Rate
C. Number of individuals leaving the habitat
D. Number of individuals entering a habitat

An orchid growing as an epiphyte on a mango branch is an example of :
A. Mutualism
B. Commensalism
C. Parasitism
D. Amensalism

ZZ-ZW type of sex determination is seen in
A. Platypus
B. Snail
C. Cockroach
D. Peacock

Identify the sex-linked recessive disorder in which clotting of blood is affected.
A. Haemophilia
B. Colour blindness
C. Cystic fibrosis
D. Sickle cell anaemia

44A + XXY chromosome compliment occurs in
A. Down syndrome
B. Turner syndrome
C. Klinefelter's syndrome
D. Bleeders syndrome

Which of the following organism does not show parthenogenesis.
A. Turkey bird
B. Honeybee
C. Rotifers
D. Hydra

Female heterogamety is observed in
A. Birds
B. Fruit fly
C. Grass hopper
D. Honey bee

Identify the sex-linked recessive genetic disorder among the following
A. Phenylketonuria
B. Sickle cell anaemia
C. Colour blindness
D. Thalassemia

Genotypic and Phenotypic ratio is same incomplete dominance is
A. 3 : 1
B. 9 : 3 : 3 : 1
C. 1 : 2 : 1
D. 1 : 1

Person having Genotype IAIB would show the blood group as AB. This is because of
Q.
A. Pleiotropy
B. Co-dominance
C. Segregation
D. Incomplete dominance

Which of the following blood group is an example for co-dominance.
A. A-Blood group
B. B-Blood group
C. AB-Blood group
D. O-Blood group

The Klinefelter’s syndrome has chromosomal constituent
A. 44A+X0
B. 45A+XY
C. 44A+XXY
D. None of them

The family pedigree of Queen Victoria shows a number of descendants for which of genetical disease
A. Haemophilia
B. Thalassemia
C. Sicklecell anemia
D. Phenyl Ketonusia

In Mendel's dihybrid experiment, the phenotypic ratio was
A. 9 (round green) : 3 round yellow: 3 [wrinkled yellow]: 1 wrinkled green
B. 9 (round yellow): 3 round green : 3 [wrinkled yellow]: 1 wrinkled green
C. 9 (round yellow): 3 (round green): 3 [round yellow]: 1 wrinkled green
D. 9 (wrinkled green) : 3 (round yellow): 3 wrinkled yellow: 1 round green

Phenotypic ratio for dihybrid cross is :
A. 1 : 2 : 1
B. 1 : 1
C. 3 : 1
D. 9 : 3 : 3 : 1

A person with the sex chromosome XXY suffers from:
A. Down's syndrome
B. Turner's syndrome
C. Gynadromorphism
D. Klinefelter's syndrome

It is a phenomenon in which a gene exists in more than two allelic forms of a character:
A. Multiple allelism
B. Pleiotropy
C. Inheritance
D. Dominance

The inheritance of a trait generally controlled by three or more genes is
A. Pleiotropy
B. Codominance
C. Multiple allelism
D. Polygenic inheritance