What is the Storehouse of all Cellular Information ?

What is the storehouse of all cellular information ?
a) Enzymes b) Hormones
c) DNA d) ATP

What Is A Self Regulating System Of The Living Steady State Called ?

The living steady state has a self regulating system called
a) Autostasis b) Entropy
c) Homeostasis d) Osmoregulation

What Does The Building Up Chemical Reactions In The Living Organisms Indicate ?

The building up chemical reactions in the living organisms indicates
a) Anabolism b) Catabolism
c) Metabolism d) None

What Are The Essential Aspects of Living Organisms ?

The essential aspects of living organisms are
a) Energy changes         b) Adaptation
c) Reproduction d) All of the above

In Ecological Sense The Desert Animals Are Termed As :

In ecological sense the desert animals are termed as


a) Arboreal b) Benthos
c) Cursorial d) Xerocles

Ethology Is The Study Of :

Ethology is the study of
a) Animal behavior          b) Animal disease
c) Human culture d) Animal adaptation

What Does Symbiosis Mean ?

Symbiosis means
a) Harmful relationship between two organisms
b) A process advantages to only one
c) Mutually beneficial partnership
d) None of these

Some Organisms Resemble Other Oorganisms And Thus Escape From Enemies. This Phenomenon Is Known As :

Some organisms resemble other organisms and thus escape from enemies. This phenomenon is known as
a) Homology b) Variation
c) Analogy d) Mimicry

Which Organ Have No Evolutionary Significance ?

Which of the following organs have no evolutionary significance ?
a) Analogous organs
b) Atavistic organs
c) Non-functional organs
d) Functional organs

What Does The Theory Of Evolution Indicate ?

The theory of evolution indicates that
a) Man evolved from monkeys
b) Monkeys evolved from man
c) Man evolved from Dinosaurs
d) Man and apes had common ancestor

Which of the primate is the closest relative of man ?

Which of the primate is the closest relative of man ?
a) Orangutan b) Gorilla
c) Pithecanthropus d) Gibbon

What Is The Entire Surface Of Earth Liveable For Living Things ?

The entire surface of earth liveable for living things is
a) Atmosphere b) Lithosphere
c) Biosphere d) Hydrosphere

What Is The Connecting Link Between Reptiles And Birds Called ?

Connecting link between reptiles and birds is
a) Dodo b) Sphenodon
c) Dimetrodon d) Archaeopteryx

Fossils Are :

Fossils are
a) Fovea in the retina of vertebrate eye
b) Remains of organisms present in rocks
c) The fossa present in the bones
d) Foramens through which nerves pass

There Is More Competition For Survival Between :

There is more competition for survival between
a) Different animals of same niche
b) Same animals of same niche
c) Different animals of different niche
d) Same animals of different niche

What Is The Scientific Culture Of Silkworm Called ?

The scientific culture of silkworm is known as
a) Apiculture b) Pisciculture
c) Sericulture d) Horticulture

What Is The Phenomenon Called When The Discoveries Are Made By Accident And Unexpectedly ?

When the discoveries are made by accident and unexpectedly, the phenomenon is called
a) Mutation b) Replication
c) Serendipity d) Recombination

What Is The Ultimate Source Of Organic Evolution ?

The ultimate source of organic evolution is
a) Natural selection b) Sexual reproduction
c) Hormrnal d) Mutations

Mature RBCs of male lacks nucleus except

Mature RBCs of male lacks nucleus except
a) Cow b) Camel
c) Tiger         d) Deer

What Do The Homologous Structures Have ?

Homologous structures have
a) Similar origin but similar or dissimilar functions.
b) Dissimilar origin but similar functions.
c) Dissimilar origin and dissimilar functions.
d) Dissimilar origin and dissimilar structures.

What Is Attributed To Lamarck ?

Which of the following is attributed to Lamarck ?
a) Inheritance of acquired characters
b) Orthogenesis
c) Origin of species
d) All of the above

Germplasm Theory Was Given By :

Germplasm theory was given by
a) Weismann b) Lamarck
c) Darwin         d) Hugo de Vries

What Is The Process Of Evolution ?

The process of evolution
a) is a continuous process
b) is a discontinuous process
c) was continuous in the beginning but discontinuous now.
d) was discontinuous in the beginning but discontinuous now.

Principle Of Use And Disuse Was Given By :

 Principle of use and disuse was given by
a) Darwin         b) Lamarck
c) Hugo de Vries d) Oparin

An Example Of Analogy Is :

An example of analogy is
a) Wings of a bird and a butterfly
b) Wings of pigeon and bat
c) Limbs of horse and man
d) Paddles of whale and forelimbs of man

Which Is Not Vestigial Organ Of Man ?

Which one is not vestigial organ of man ?
a) Wisdom teeth
b) Muscles of ear pinna
c) Vermiform appendix
d) Ileum

What Is The Doctrine Of Evolution Is Concerned With ?

7. Doctrine of evolution is concerned with
a) Special creation theory
b) Gradual changes
c) Abiogenesis
d) Biogenesis

What Does The Term Evolution In Biology Mean ?

The term evolution in Biology means that
a) Fossils are old
b) Life began in sea
c) Living things constantly change
d) Man descended from Apes

What Is The Physical Basis Of Life ?

Physical basis of life is
a) Cytoplasm                b) Protoplasm
c) Nucleoplasm           d) Carbohydrates

Introduction of Biology

Biology (Gr. Bios=life + logos=study) is the branch of sciece dealing with the study of living organisms. The term 'Biology' was first used by Lamarck and Treviranus in 1801. Aristotle the Greek philosopher is regarded as the 'Father of Biology' and 'Zoology'.

The study of plant is called Botany (Gr. Botane = herb). The word Botane itself originated from Boskein, which means grazing. Theophrastus (370-287 B.C.) described about 480 types of plants in 'Historia Plantarum'. He is known as the 'Father of Botany'.

What Is The Hereditary Material ?

The hereditary material is
a) Lipid                         b) Protein
c) DNA                      d) RNA

What Is The Study Dealing With Heredity And Variation Called ?

The study dealing with heredity and variation is
a) Cytology         b) Breeding
c) Biotechnology d) Genetics

What Is The Study Of Processes And Functions Associated With Life Called ?

The study of processes and functions associated with life is
a) Microbiology b) Molecular Biology
c) Cell Biology         d) Physiology

What Is The Branch Of Science That Deals With The Study Of Identification, Nomenclature And Classification Of The Organisms Called ?

The branch of science that deals with the study of identification, nomenclature and classification of the organisms is
a) Anatomy b) Morphology
c) Zoology d) Taxonomy

What Is a Group of Individuals Living In a Particular Area at a Particular Time Called ?

A group of individuals living in a particular area at a particular time is called
a) local population                 b) deme
c) community                          d) both (a) and (b)

After a forest fire ferns are often the first plants to appear because of the survival of their

After a forest fire ferns are often the first plants to appear because of the survival of their
a) spores b) leaves
c) fronds d) rhizome

Who Purposed The Double Helical Model Of DNA ?

Double helical model of DNA was purposed by
a) Watson and crick b) Khorana and Nirenberg
c) Miller and Urey d) Oparin and Haldane

Which Of The Following Is Not a Character Of a Monocot Plant ?

Which of the following is not a character of a monocot plant ?
a) presene of a single seed leaf
b) fibrous roots
c) leaves with parallel veins and smooth edges
d) floral parts as multiple of four or five

Which Is Matching Pair Of Certain Organisms And The Kind Of Association ?

Which of the following pair is matching pair of certain organisms and the kind of association ?
a) Shark and sucker fish - commensalisms
b) Algae and fungi in lichen - mutualism
c) Orchids growing on trees - parasitism
d) Cuscuta growing on other flowering plants - epiphytism

Mr. X Is Eating Curd/Yoghurt. For This Food Intake In a Food Chain He Should Be Considered As Occupying :

Mr. X is eating curd/yoghurt. For this food intake in a food chain he should be considered as occupying
a) first trophic level b) second trophic level
c) third trophic level d) fourth trophic level

What Is The Stage Of Mitosis In Which Chromosomes Get Arranged In The Form Of An Equatorial Plate In The Centre Of The Dividing Cell Called ?

A stage of mitosis in which the chromosomes get arranged in the form of an equatorial plate in the centre of the dividing cell is called
a) prophase b) metaphase
c) anaphase d) telophase

What Is Branch Of Ecology Which Is Concerned With The Study Of Individual Species At All Stages Of Its Life Cycle In Relation To The Environment Called ?

A branch of ecology which is concerned with the study of individual species at all stages of its life cycle in relation to environment is called
a) synecology               b) ecological niche
c) reproductive ecology       d) autecology

What Does The Major Portion Of Dry Weight Of Plant Comprise Of ?

The major portion of dry weight of plant comprises of
a) carbon, nitrogen, and hydrogen
b) carbon, hydrogen, and oxygen
c) nitrogen, phosphorous, and calcium
d) calcium, magnesium, and iron

What Is The Capacity To Blend With Sorroundings Called ?

Capacity to blend with sorroundings is called
a) hibernation b) mimicry
c) camouflage d) aestivation

What Is The Bottom Zone In a Lake Called ?

Bottom zone in a lake is called
a) limnetic     b) profundal
c) benthic d) littoral

What Is The Atmospheric Layer Which Is The Site Of All Weather Phenomenon ?

The atmospheric layer which is the site of all weather phenomenon is
a) stratosphere b) troposphere
c) mesosphere d) ionosphere

What Is The Functional Role And Status Of a Species In a Community Called?

Functional role and status of a species in a community is known as
a) performance                  b) ecological niche
c) tolerance                  d) organization

What Is The Development of Sporophyte Without Gametic Union Called ?

Development of sporophyte without gametic union is called
a) apospory                b) apogamy
c) anthesis                         d) double fertilization

Which Is Generally Not a Characteristic of Anemophilous Flower ?

Which of the following is generally not a characteristic of anemophilous flower ?
a) unisexual nature                 b) abundant pollen grains
c) bright colored                 d) reduction in number of sepals and petals

What Is The Maturation of Gynoecium Before Anthers of The Same Flower Called ?

Maturation of gynoecium before anthers of the same flower is called
a) protogyny                b) protandry
c) heterogamy                d) pollination

Which Plant Is Propagated Through Root ?

The plant propagated through root is
a) Sweet potato              b) Asparagus
c) Dahlia                      d) all of these

Which is not an Artificial method of vegetative propagation ?

Which of the following is not an artificial method of vegetative propagation ?
a) cutting                b) grafting
c) layering                d) bulbils

A Characteristic Feature of Ripening of Some Fruits (Like Bananas) Is a Sudden Increase in Respiration Known as :

A characteristic feature of ripening of some fruits (like bananas) is a sudden increase in
respiration which is known as
a) climatic                b) photorespiration
c) anthesis                         d) climacteric

Which Is Not a Product Of Fermentation ?

Which of the following is not a product of fermentation ?
a) water                b) CO2
c) alcohol                d) ATP

Anaerobic Respiration In The Presence of Microorganisms Called ?

Anaerobic respiration in the presence of microorganisms is known as
a) pasteurization                         b) decay
c) putrefaction                            d) fermentation

What Is The Processes In Which Organisms do not Require Light and Pigment and Synthesize Their Food Utilizing Energy Released by Oxidation of Inorganic and Organic Substances ?

The processes in which organisms do not require light and pigment and synthesize their food utilizing energy released by oxidation of inorganic and organic substances is
a) photoautotrophism                b) heterotrophism
c) chemosynthesis                     d) saprophytism

Light reaction of photosynthesis produces assimilatory power in the form of :

Light reaction of photosynthesis produces assimilatory power in the form of
a) ATP, NADH2                     b) ATP, NADPH2
c) NAD                                    d) NADP

Where Is Phosphorous Found Maximum ?

Phosphorous is found maximum in
a) roots                                  b) fruits
c) flowers                              d) none of these

What Is The Most Critical Element Required For Organisms ?

The most critical element required for organisms is
a) N              b) P             c) K               d) S

What Is The condition under which transpiration would be most rapid ?

The condition under which transpiration would be most rapid are
a) excess of water in soil
b) low humidity, high temperature, turgid guard cells and moist soil
c) low velocity of wind
d) high humidity

In Which Form, Water Is Lost In Guttation ?

In guttation, water is lost in the form of
a) water vapours
b) dilute solution of sugars
c) pure liquid form
d) dilute solution of salts and organic substances

Which Instrument Is Used To Measure Root Pressure ?

Root pressure is measured by
a) osmometer               b) manometer
c) barometer               d) auxanometer

How Can a Pure Tall Pea Plant Be Distinguished From a Hybrid Pea Plant ?

A pure tall pea plant can be distinguished from a hybrid pea plant by
a) measuring its height
b) gibberellin treatment
c) selfing and noting that all progeny are tall
d) selfing and noting that all progeny are dwarf

What Is The Richest Source Of Vegetarian Product ?

Which of the following is the richest source of vegetarian product ?
a) rice                        b) barley
c) soyabean               d) gram

What Is The Introduction Of Foreign Genes For Improving Genotype Called ?

Introduction of foreign genes for improving genotype is
a) tissue culture                         b) immunization
c) biotechnology                       d) genetic engineering

What Does Anaerobic Respiration In Yeast Produce ?

Anaerobic respiration in yeast produces
a) alcohol and CO2                  b) CO2 only
c) lactic acid                               d) formic acid

What Is The Organism Capable of Destroying Bacterial Colonies ?

The organism capable of destroying  bacterial colonies is
a) virus                                        b) tadpole
c) lysosome                               d) bacteriophase

Which Hormone Is Responsible For Fruit Ripening ?

Which hormone is responsible for fruit ripening ?
a) ethylene                                 b) abscissic acid
c) auxins                                    d) gibberellins

What Is The Change In Sequence Of Nucleotides In DNA ?

Change in sequence of nucleotides in DNA is known as
a) translation                           b) recombination
c) mutation                               d) cancer

What is the example of sex linked disease ?

Which of the following is example of sex linked disease ?
a) AIDS                                     b) rabies
c) bird flu                                 d) hemophilia

At What Condition, A Gene Is Said To Be Dominant ?

A gene is said to be dominant if
a) it expresses its effect only in homozygous state
b) it expresses its effect both in homozygous and heterozygous state
c) it expresses its effect only in heterozygous state
d) it never expresses

What Is An Organism Which Is Generally Without Plastids And Can Synthesize Its Organic Food ?

An organism which is generally without plastids and can synthesize its organic food is
a) fungi                         b) lichen
c) algae                       d) bacteria

Which Plant Has The Characteristic Of Double Fertilization And Triple Fusion ?

Double fertilization and triple fusion is characteristic of
a) all plants                     b) angiosperms
c) gymnosperms                   d) pteridophytes

What Is A Genetically Uniform Population of Plants Raised From a Single Plant Constiutes Called ?

A genetically uniform population of plants raised from a single plant constiutes
a) clone                                    b) hybrid
c) population                         d) stock

What An Antiviral Substance Produced In Cell In Response to Viral Infection to Prevent the Replication of New Virus Called ?

An antiviral substance produced in cell in response to viral infection to prevent the replication of new virus is
a) antibody                               b) interferon
c) vitamin C                              d) antigen

How Is Emasculation of Flower Achieved ?

Emasculation of flower is achieved by
a) removal of stamens            b) removal of carpels
c) removal of flower                d) removal of petals

What Is The Molecule Which Contains All The Information For Carrying All The Life Processes Called ?

The molecule which contains all the information for carrying all the life processes is
a) rRNA                                     b) tRNA
c) DNA                                      d) mRNA

How Are Roots Different From Stem ?

Roots are different from stem in
a) absence of nodes and internodes
b) being positively geotrophic
c) presence of unicellular hairs
d) all of the above

What Are The Region of Chromosome to Which The Spindle Elements are Attached Called ?

The region of chromosome to which the spindle elements are attached are called
a) chromomere                       b) centriole
c) chromocentre                    d) centromere

In Which Stage of Meiosis Does Reduction of Chromosomes Into Half Occur ?

During meiosis reduction of chromosomes into half occurs in which stage ?
a) Anaphase I                       b) Anaphase II
c) Prophase I                        d) Telophase II

What Is The Number of DNA, Just Before its Division ?

A cell is about to divide. Just before its division, the number of DNA in it
a) halves                                 b) remains the same
c) doubles                              d) decreases

What Do Eukaryotic 80S Ribosomes Break Into ?

Eukaryotic 80S ribosomes break into
a) 40S and 40S                     b)50S and 30S
c) 60S and 50S                     d) 60S and 40S

What Posses Clover Leaf Shaped Structure ?

Which of the following has a clover leaf shaped structure ?
a) DNA                                   b) tRNA
c) rRNA                                  d) mRNA

Instead of Chromosomes, What has only DNA ?

Instead of chromosomes which of the following has only DNA ?
a) Anabaena                         b) Chlamydomonas
c) Voiox                                 d) Spirogyra

What Does Every Living Cell Have ?

Every living cell has
a) chloroplasts                         b) membrane
c) cell wall                               d) food vacuole

What Is Endoskeleton of Cell Made Up of ?

Endoskeleton of cell is made up of
a) cell wall                               b) cytoplasm
c) endoplasmic reticulum          d) mitochondria

What Is a Collection of Plants Obtained as a Result of Repeated Self-Pollination From a Single Homozygous Individual Called ?

A collection of plants obtained as a result of repeated self-pollination from a single homozygous individual is called
a) mixed selection               b) pure line selection
c) mass selection                d) clonal selection

Where does Glycolysis During Respiration Take Place ?

Glycolysis during respiration takes place in
a) mitochondrion                    b) cytoplasm
c) ribosome                           d) peroxysomes

Give an Example of Insectivorous Plant.

An example of insectivorous plant is
a) Viscum                              b) Cuscuta
c) Monotropa                        d) Drosera

Which of the following is essential for the formation of chlorophyll ?

Which of the following is essential for the formation of chlorophyll ?
a) manganese                       b) magnesium
c) iron                                  d) copper

What is The Technique employed to get Rid of the Microbes in Culture Medium Called ?

The technique employed to get rid of the microbes in culture medium is called
a) vernalization                      b) hardening
c) sterilization                        d) inoculation

What is Unorganized Mass of Undifferentiated Tissue Called ?

Unorganized mass of undifferentiated tissue is called
a) explants                             b) callus
c) somatic embryo                 d) inoculum

What Is The Number of Autosomes In a Cell of a Man ?

The number of Autosomes in a cell of a man is

a) 46                                       b) 23

c) 44                                       d) 22

What Is The Function of Xylem ?

Function of xylem is:

a) buoyancy                           b) photosynthesis

c) storage                              d) conduction of water