Online Test

Question # 1

Latex produced by Cryptostegia grandiflora is a source of

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Fodder

Rubber

Fiber

Stuffing material

Major types of ecosystems, those that occupy board geographical regions are called

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Climax community

Biome

Planetary ecosystem

Community

As a result of the union of anther and pistil this structure is formed

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Polonium

Gynoestigium

Corpusculum

Translator

While studying a community er come across three levels of organizations which include all of these except

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Individual

Population

Community

Species

Wilhelm Eichler divided plants into two groups

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Bryophytes and pteriidophytes

Gymnosperms and angiosperms

Thalophytes and carmophytes

Cryptogamy and Phanerogamy

Members of malvaceae are

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Tropical

Sub-tropical

Temperate

Cosmopolitan

Studying a single population's relationship to its environment will be

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Synecology

Autecology

Ecology

Etealogy

Why molds can grow on oranges and jelly kept in refrigerator where generally bacteria cannot reach

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They are well adapted to live on land

Hyphae are modified

They can tolerate temperature extremes minus 5 degree centigrade below freezing and 50 degree centigrade or more

They have rhizoids

Following statement is in accordance to Darwinisw

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Natural Selection

Over Production

Survival of fittest

All of these

Botanical name of tomato

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Solanumtuberosum

Lycopersicumesculentum

Petunia Alba

Solanumnigrum

A special protein that generates voltage across a membrane is called;

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Electrochemical protein

Electromagnetic Protein

Electrogenic protein

Proteogenic protein

The water culture technique for growing plants with their roots in a recirculating water solution is

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Hydroponics

Sericulture

Hygoculture

Hydroculture

Cohesion theory of ascent of sap is proposed by

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Zimmernmann

John jolly

Dixon

Both a & b

Gene pool is the total aggregate of gene a ----------- at any one time.

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Individual

Population

DNA

Chromosome

Genera with common characteristics are grouped into a more inclusive group

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Species

Family

Genus

Sub-species

Family ------------ incluldes 100 genera and 850 species

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Compositeae

Crucifereae

Labiateae

Cucurbitaceae

Stephen Endlicher classified plants into two major groups

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Thalophytes and pteridophytes

Thalophytes and carmophytes

Bryophytes and pteridophytes

Angiosperms and ghmnosperms

1. ----------- is the process in which plasma membrane starts pulling away from the cell wall;

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Incipient plasmolysis

Indirect plasmolysis

Critical Phasmolysis

None

Disease in living organisms, which are caused by parasites called as

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Predation

Symbiosis

Infestations

Mutualism

Green color blindness is called

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Parotanopia

Denteranopia

Tritanopia

Non of these

In Aerobic respiration, the waste product in plants is produced in the form of

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Uric acid

CO₂

Walter

Ammonia

Both b & c

Match with Lamarckism

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Inheritance of acquired characteristics

Long neck of giraffe is evolved gradually as cumulative product of many generations

Body parts used extensively become stronger and larger

All A, B and C

Protanopia is

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Green blindness

Red blindness

Yellow blindness

Blue blindness

Potentillaanserina is useful in

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Asthma

Dissolving kidney stones

Skin diseases

Stomach disorders

Rusts belong to the group of club fungi they are called so because

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Orange-yellow colored disease spots on their host surface

Dusty spore masses that resemble soot

Rust have fruiting bodies

Puccinia species

In fishes, gill pouches develop into

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Gills

Threat & Middle ear

Eustachian tubes

Both A and B

Historical remnants of structures that had important function in ancestors but are no longer essential presently are called

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Analogous organs

Vestigial organs

Fossils

None of these

In fungi asexual reproduction occurs by all these method except which one

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Spores

Conidia

Binary fission

Budding

Two species with the same specific epithet cannot occur in the genus. If this happens, the earlier valid name will retain and the latter will become it

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Homonym

Synonym

Legitimate

Illegitimate

Apple is a member of family

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Rasaceae

Ranunculaceae

Labiaceae

Malvaceae

He distinguished gymnosperms as naked seeded are enclosed in vessels

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Rebert Brown

Linneous

Armen Takhtajan

Arthur

Fruits of labiateae is

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Pome

Pappus

Drupe

Carcerulus

Which of the following describes the process of natural selection?

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Change from simple to more complex organisms

Differential reproductive success between genotypes

Increase in size of population

Occurrence of new mutations

Which statement is not true about the family Euphorbiaceae

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They are found in arctic regions

They are mainly herbs and shrubs

They are a source of timber

Their seed is endospermic

Euphorbia Milli is a

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Tree

Herb

Ornamental shrub

Ornamental herb

The species with the same specific epithet cannot occur in the genus. If this happens, they are called

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Homonym

Synonym

Legitimate

Illegitimate

The body of fungus is called as

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Mycelium

Hyphae

Septate hyphae

Coenocytic

Which statement is not true about the family Euphorbiaceae?

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Self and cross

Insect and cross

Self and insect

Self and wind

The botanical name of date (khajoor) is

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Phoenix slyvestris

Cucusmucifera

Cryotaurens

Raphisruffia

Leaves of ---------- are used for the treatment of asthma

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Datura

Lyecium

Atropa

Solanum

What are the important features that fungi have which help them in their survival on land?

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Tolerate wide range of pH

Tolerate temperature

Tolerate high osmotic pressure

All of the above

When a species is described in one genus and later transferred to another genus, the specific epithet

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Homonym

Synonym

Legitimate

Illegitimate

Males suffering from Jacobs's syndrome have sex chromosomes

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XXX

XO

XXY

XYY

Vegetative parts of --------- are easier to observe than reproductive parts

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Angiosperms

Gymnosperms

Bryophytes

Pteridophytes

Bentham and Hooker divided plants in 202 orders

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Seeded

non-seeded

Floral

non-floral

Many fungi are the sources of drugs, which drug is used to lower the blood cholesterol level

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Griseofulvin

Cyclosporine

Lovastatin

Ergotin

Cryptostegiagrandiflorais a cultivated ----------- growing in gardens.

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Herb

Shrub

Grass

Climber

When all the original specimens and their duplicates have been lost or destroyed

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Lecto type

Neotype

Isotype

Paratype

Parasitic fungi absorb nutrients directly from the living host cytoplasm with the help of hyphal tips called as

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Rhizoids

Constricting ring

Haustoria

Hyphae

The botanical name of Ajwain is

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Ocimum sanctum

Ocimumbasilicum

Methe sylvestris

Coleus aromaticus

Ray florets have ------------ flowers

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Tubular

Ligulate

Round

None

The principle stage of nitrogen cycle include all of the following except

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Ammonification

Nitrification

Assimilation

Nitrogen depletion

A fungal hyphae having 2 nuclei of different genetic type is called as

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Karyogamy

Plasmogamy

Hetrokaryotic

Fragmentation

The majority of plants of this family provides edible fruits

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Rosaceae

Labiaceae

Ranunculaceae

Malvaceae

Which one of the following is a biotic component?

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Atmosphere

Water

Fungi

Soil

In ---------- stems & roots of plants increase in diameter

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Primary growth

Secondary growth

Permanent growth

Apical growth

Thin layer of earth in which all living organism exist is known as

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Habitat

Niche

Biosphere

Ecological niche

An ecosystem is forged from bare rock, sand or clear glacial pool where there is no trace of previous life it refers to

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Secondary succession

Hydrosere

Xerosere

primary succession

Fruit of labiateae consists of four ------------- nutlets.

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One seeded

Two seeded

Three seeded

Four seeded

Pyruscommunis is the botanical name

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Apple

Almond

Apricot

Lokat

Disc florets have ------------ flowers

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Tubular

Ligulate

Round

None

Seeds of family ---------- bear a tuft of hairs

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Compositeae

Labiateae

Asclepiadaceae

Ranunculaceae

When the leaves fails to produce normal amounts of chlorophyll, the disease is

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Apoptosis

Chlorosis

Chlorination

Necrosis

Fruits of Emblicaofficinalis are used for making

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Oil

Perfume

Hair dye

All of these

Family labiateae is also called

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Lamiaceae

Labiaceae

Lambitaceae

None

The largest genus of family Solanaceae is

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Solanum

Capsicum

Lyceum

Atropa

Seeds of members of family pharmacies are

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Endospermic

Exalbuminous

Both a and b

None of these

When there is a net movement of water molecules occurs towards an imbibant, the type of diffusion is

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Potential diffusion

Active diffusion

Passive diffusion

Imbibation

Raphanussativusis the botanical name of

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Radish

Cabbage

Wall fruit

Wall cress

The species which is at the threat of danger of extinction is called

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Endangered species

Extinct species

Threatened species

All of these

It includes the plants in which perianth is absent or reduced

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Apocarpae

Nudiflorae

Heteromarae

Glumacae

Seed of rosaceae is

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Edosperm

Endosperm oily

Non endosperm

None

The present international code of botanical nomenclature consists of ---------- rules.

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Phylogenetic system

Nomenclature type

Specific name

Common names

The system of classification that reflects the evolution

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Modern

Phylogenetic

Polygenic

Natural

In ------------- long flowering stalk develops

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Parthenocarpy

Elongation

Vernalizaion

Bolting

Translocation into developing organs, i.e. Roots, tubers and reproductive organs is called;

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Deport

Export

Both a & b

None

Members of compositeae are

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Topical

Sub-tropical

Temperate

Cosmopolitan

Natural system of classification is based on characters

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Reproductive and anatomical

Morphological and anatomical

Morphological and reproductive

Vegetative and reproductive

The criteria of the classification are the ----------- on which the classification is based.

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Groups

Divisions

Characters

Orders

Calyx sometimes modified into a large number of hairs like structures

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Pepo

Pappus

Ray floret

Neuter

All fungi lack chlorophyll and on the basis of their mode of nutrition, they include all these groups except

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Absorptive heterotrphs

Saprotrophs

Decomposers

Autotrophs

Translator consists of two parts

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Corpusculum and a pair of arms

Gynoestigium and polonium

Androecium and gynoecium

Gynoestigium and corpusculum

------------ are the reaction that takes place during the light phase of photosynthesis

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Kelvin cycle

Photo-reaction

Hill's reaction

All

It is a duplicate specimen of holotype collected as same place and time

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Holotype

Isotype

Lectotype

Syntype

Cytochrome 'c' found is all aerobic species is a respiratory

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Carbohydrate

Protein

Co-enzyme

Vitamin

What is the contrasting feature on the basis of which fungi are considered different from animals?

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Lack cellulose in their cell wall

Heterotrophs

Contains chitin

Non-motile

The transference of pollen grains on the stigmatic surface is brought by a special structure

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Polonium

Gynoestigium

Corpusculum

Translator

The botanical name of plum is

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Prunuspersica

Pyruscommunis

Prunusdomestica

Rosa Alba

The phenomenon of interference / hide the effect of one gene present at one locus by the other gene present at other locus is called

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Epistasis

Crossing over

Gene linkage

Synapsis

Bark of Quillajasaponariais used in perparing

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Fiber

Dye

Paper

Shampoos

The anthers are two celled and pollen grains are in the form of tetrads and are found in the sac like sturctures

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Polonium

Gynoestigium

Corpusculum

Translator

Study of relationship of animals to their environment is termed as

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Ecology

Eco

System

Biotic components

If an author cited two or more specimens as types, the remaining cited species are

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Lectotype

Syntype

Paratype

Neotype

The appendages of anthers form a corona

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Tanslator

Cuculli

Staminal

Pollinium

The criteria of the classification are the ------------ on which the classification is based.

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Groups

Divisions

Characters

Orders

It is a specimen chosen by later worked from original material studied by the author of the species

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Holotype

Syntype

Isotype

Lecto type

Aggregates of closely related species

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Infra specific species

Variety

Subspecies

Genus

Niche is a brad term which refers to all these statements except which one

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Role a species plays in a community

Job of an organism

Basic role of an organism in community

An organism responds to variety of environmental factors

The specimen designated by the author as type specimen is

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Holotype

Isotype

Lectotype

Syntype

Saccharomyces cervisiae is the most commonly exploited yeast which feature highlights their economic improtance

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Asexual reproduction

Unicellular

They ferment carbohydrate to ethanol and carbon dioxide

Sexual reproduction

An organism that is caught and eaten is called

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Predator

Prey

Ectoparasites

Endoparasites

Plants of family asclepiadaceae are used to treat

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Gastric disorders

Skin disorders

Maternal disorders

None of these

In ecosystem an eagle may eat blue birds may eat insects, like caterpillar which feeds on green leaves this is a example of

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Simple food chain

Food web

Succession

Community relay

--------- is produced when phosphoenolpyruvic acid combines with CO₂

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Oxalic acid

Citric Acid

Abcissic acid

Oxalomalic acid

Which true about pattern baldness except

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It is x-linked disease

It is sex influenced trait

It is autosomal recessive trait in females

It is autosomal dominant trait in male

The group of enzymes that bring about non-hydrolytic addition or removal of substrate are

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Hydrolase

Protease

Heptase

Dehydrogenase

In an ecosystem Green photosynthetic plants, which capture and bring light energy into ecosystem are termed as

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Consumers

Decomposers

Producers

Parasites

--------- is the process of ATP production in chloroplast is

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Photophosphorylation

Dark reaction

Calvin cycle

All

The botanical name of Kala Zira is

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Nigella sativa

Clematyustriloba

Ranunculus aquatalis

Delphinium ajasis

Botanists were agreed that scientific names should be in

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English

Latin

Greek

Spanish

It is one of the two or more specimen cited by an author of the species when no holotype was designated

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Isotype

Lctotype

Syntype

Paratype

Fungi are used in food industry, which fungi is used in bakery for flavor, aroma, color to some cheese

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Yeast

Penicillium

Aspergillus

Neurospora

A women red green color blind marries a red green color blind man, what is the probability of the first born child red green color blind?

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100%

50%

75%

25%

An ordered array composed of a series of inclusive levels

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Taxon

Systematics

Hierarchy

Monopoly

Vegetative parts of ----------- are easier to observe than reproductive parts

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Angiosperms

Gymnosperms

Bryphytes

Pteridophytes

"In this stage the lichens are just like crumpled leaves attached at one point" about which stage we are talking

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Crustose lichen stage

Foliage lichen stage

Moss stage

Herbaceous stage

Refers to the place and scope of the publication

Choose an answer

Effective publication

Homonym

Tetention

Sysnonym

In plants the process of respiration is also termed as;

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Tissue respiration

Eqidermal respiration

Both a & b

Cutaneous Respiration

Which of the following can be used as evidence of evolutions?

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Comparative embryology

Comparative anatomy

Genetic Code

All of these

--------------- are the plants that flower only once and then die

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Monocarpic

Dicarpic

Apocarpic

holocarpic

While studying the components of an ecosystem what is the biotic component in all these examples?

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Gravity

Topography

Consumers

Temperature

Fungi are classified in a number of groups which is one of the following groups that does not show sexual reproduction

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Zygomycota

Ascomycota

Basidiomycota

Deuteromycota

A symbiotic association between certain fungi and certain photoautotrophes either green algae or a cyanobacterium or sometimes both is termed as

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Mycorrhizae

Lichens

Endomycorrhizae

Ectomycorrhizae

Mycorrhiza is an association between roots of plants growing in acid soil and certain fungi to which relation it belongs

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Symbiosis

Commensalism

Grazing

Grazers

If sex chromosomes are more than two in an individual, these are called as

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Multiple sex chromosomes

Compound sex chromosomes

Autosome + sex chromosomes

Pseudo autosome

Largest family of angiosperm

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Crucifereae

Compositeae

Ranunculaceae

Cucurbitaceae

Fungi cause certain animal diseases. How Ringworm and athlete's foot are caused by fungi

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Imperfect fungi

Aspergillus fumigatus

Purple ergot

Soil contaminated with bird's feces

The process in which energy migration takes place within a group of neighbouring pigments is called

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Reductive resonance

Deductive resonance

Inductive resonance

None

The collection of stomatal pores guard cells and subsidiary cells is called;

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Stomatal Apparatus

Guard cells complex

None

Both a & b

-----------harmone increase tendency of plants to produce a male flower

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Auxins

Gibberllins

Ethylene

Abcissic acid

What are the major decomposers of the biosphere contributing to the recycling of the elements used by living things?

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Saprobic fungi and bacteria

Plants

Animals

Algae

The non-protein part covalently bonded to enzyme is

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APO-enzyme

Coenzymes

Co-factor

None

Adolph Engler classified the whole plant kingdom on the basis of

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Natural

Artificial

Phylogenetic

Modern

Phanerogamy includes

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Bryophytes and pteriodphytes

Thalophytes and carmophytes

Angiosperms and gymnosperms

Thalophytes and pteridophytes

Brassica compestris is the member of the family

Choose an answer

Cucurbitaceae

Crucifereae

Compositeae

Ranunculaceae

The other name of glycolysis is

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Calvin cycle

EMP pathway

Light reaction

None

The characters of constant nature which are used to define a group are

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Synthetic

Systematic

Variations

Diagnostic

The genus name and the specific epithet together

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Scientific name

Nomenclature

Binomial

Specific name

Mushroom belongs to group of club fungi and has septate, length dikaryotic phase, which is the main phylum to which it belongs

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Zygomycota

Basidiomycota

Deuteromycota

Ascomycots

Which one of these is a predatory fungus?

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Pleurotus ostreatus

Mildews

Armillaria

Yeast

--------- lives for more than two growing seasons

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Binnials

Annuals

Perenials

Bicarpic

A succulent berry with hard rind is commonly known as

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Drupe

Pome

Pepo

None

Plants of Euphorbiaceae contain the vitamin

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A

B

C

D

Certain hornlike projections are given out from the back of anthers

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Translator

Cuculli

Gynoestigium

Pollinium

Those individuals whose inherited characteristic fit them best to their environment are likely to leave more offspring, it is referred as

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Artificial selection

Natural Selection

Survival of the fittest

Both B and C

Fruit of Ranunculaceae is

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Etaerio of achenes

Capsule

Etaerio of follicles

All of these

If two substances move in different directions, through the membrane, the contransport is called;

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Antiplast

Heteroplast

Apoplast

None

Second largest family of glowering plants

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Leguminoceae

Labiaceae

Cucurbitaceae

Solanaceae

A sex limited trait is limited to only one sex due to

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Taxonomic differences

Ecological differences

Physiological

Anatomical difference

Family curcifereae is characterized by the persence of ------------ corolla

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Cross like

Cushion like

Zigzag

None

Seed of family Ranunculaceae is

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Endospermic

Endosperm oily

pericarp

Both a and b

The oxidative change of water in photo-chemical excitation occurs in a process

Choose an answer

Photo-reaction

Phosphorylation

Photo-oxidation

None

Members of family -------- are a source of camphor

Choose an answer

Cucurbitaceae

Labiaceae

Compositeae

Malvaceae

Cucumissativusis the botanical name of

Choose an answer

Bitter gourd

Vegetable marrow

Cucumber

Watermelon

In Zygomycota during sexual reproduction, zygota formed directly by the fusion of hyphae forms temporary, dormant, thick walled resistant structure called as

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Ascospores

Zygospores

Asci

Ascocarps

The disease in which leaves may appear twisted and finally die is

Choose an answer

Bronzing

Whiptail disease

Whiplash disease

None

Nullo gamete is

Choose an answer

With one sex chromosome

With one sex chromosome present

With no sex chromosome

Without any chromosome

Parasexuality is a special type of genetic recombination which is showed by which group of fungi

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Penicillium

Imperfect fungi

Powdery mildews

Spitting fungus

Fruits of leguminoceae is

Choose an answer

Legume

Lomentum

Drupe

Both a & b

When a single gene effects two or more traits the phenomenon is called

Choose an answer

Epistasis

Bombay phenotype

Gene linkage

Pleiotropic

Locus is

Choose an answer

Segment of chromosome

Position of a gene on the chromosome

Genes present on one chromatid

Collection of genes at specific part of chromosome

Plants of asclepiadaceae are mostly

Choose an answer

Herbs

Shrubs

Trees

All the them

He is regarded as the father of modern taxonomy

Choose an answer

Robert Thorne

Armen Takhtajan

Linneous

Arthur Conquist