Question # 1

Pick up the example of a dinucleotide:

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ATP

GTP

ADP

NAD

Charles Darwin was born in Shrewsbury, in Western England in

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1854

1807

1809

1866

The term niche in ecolgy was first proposed by:

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Charles Eton

Ernst Haeckel

Joseph Grinnell

Carolus Linnaeus

Urine is preferably used as a vehicle for biotechnology product than:

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Blood

Milk

Plasma

Tissue fluid

Which of the following acts as template strand for reverse transcription

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Viral DNA

Viral RNA

Host DNA

Host RNA

The lake ecosystem can be divided into ______ number of zones:

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Two

Three

Four

Five

Moss stage is represented by

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Polytrichum

Tortula

Adiantum

Both a and b

Both Glycoprotein and glycolipids are components of

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Plant Cell walls

Algal Cell Walls

Fungal Cell Wall

Biological Membranes

When succession starts on dry soil or rocks it is called:

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Hydrosere

Derosere

Xerosere

lithosere

All food chain and food web begin with:

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Producers

Consumers

Decomposers

Prey

Which is irrelevant?

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Genome to virus structure

Capsomeres to Capsid

Tumors to retroviruses

Envelope to all viruses

Joseph Grinnell an American scientist was:

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Paleontologist

Embryologist

Ornithologist

All of these

The processes that have transformed life on earth from its earliest forms to the vast diversity that we observe today, are collectively referred as

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Evolution

Succession

Revolution

All of above

The sucessions started on water is called as

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Hydrosere

Xerosere

Derosere

None of the above

Snails are the intermediate hosts of

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Fasciola hepatica

Schistoma

Taenia solium

Ancyclosoma duodenale

The synecology is also termed as

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Community ecology

Population ecology

Specie ecology

All of above

The cartilaginous fishes contain scales ….

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Placoid

Cycloid

Ganoid

Ctenoid

The enzyme that works best at intermediate pH is

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Pepsin

Chymotrypsin

Sucrase

Pancreatic lipase

Algae are

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Microproducers

Macroproducers

Both A and B

None of above

Most unifying characteristics of all types of cells is

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Cell membrane

Nucleus

Ribosomes

S.E.R

The best known phages are T phages that infect

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Pseudomonas

Mycoplasma

Escherichia Coli

Salmonella

In littoral zone, the zooplanktons are:

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Protozoan and coelenterates

Protozoan and porifers

Protozoan and flatworms

Protozoan and crustacean

Tape worm is the example of

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Endoparasite

Ectoparasite

Outer parasite

All of above

Producers are

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Heterophs

Green plants

Carnivores

Herbivores

Pick out the phospholipid from the following

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Phosphatidylserine

Lecithin

Phosphatidylcholine

All

How plants are deprived of nutrients by acid rain

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Due to teaching

Due to fall in pH

Acid creates a barrier to absorption

Unknown cause

The change in frequency of alleles at a locus that occurs by chance is called :

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genetic drift

genetic change

gene mutation

gene frequency

Ventral root of the spinal nerve contains

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Sensory nerve fibres

Motor nerve fibres

Mixed nerve fibres

All

The cells absent in sponges are

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Chondrocytes

Pinacocytes

Choanocytes

Archeocytes

Mad cow infection is caused by ____

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Viroid

Virion

Prion

Bacteria

Layer of earth where life is present is called

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Hydrosphere

Lithosphere

Biosphere

Topography

Common housefly is involved in spread of all diseases except

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Hepatitis

Malaria

Dysentery

Cholera

What happens when both alleles of a gene pair independently express in a heterozygote?

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dominance

incomplete dominance

over dominance

codominance

--------------- and --------------- have same number of chromosome

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Man, Chimpanzee

Chimpanzee, Potato

Man, Potato

Potato, Tomato

Plant and animals replace the earlier ones in a way of

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Community relay

Succession

Predecessors

All of these

Myelin is made up of

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Nucleoprotein

Lipoprotein

Glycolipids

Glycoproteins

Bacterial and fungi are mainly included in the group of

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Consumers

Decomposers

Producers

None of these

The study of different communities (grouping of population) in relation to their environment is called

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Autecology

Synecology

Ecology

Biogeopraphy

Fresh water ecosystem covers less than ______% of the hydrospheric ecosystems

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2

3

1

4

The study of relationship of a single population to its environment is called:

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Autecology

Synecology

Both a & b

None

Which one of the following always contains DNA?

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Centriole

Lysosome

Golgi apparatus

Mitochondrion

Lices and mosquitoes are the examples of

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Endoparasite

Ectoparasite

Outer parasite

All of above

Darwin collected 13 types of birds of :

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Robins

Sparrows

Kingfishers

Finches

Eagle may eat blue bird, but blue bird eats insects like caterpillar and caterpillar feeds on grass or green leaves. This is a ______

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Food chain

Food web

Both A and B

None of above

Peptidoglycan or murine is a special or distinctive feature of cell wall in

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Algae

Bacteria

Fungi

Plants

Tritanopia is blindness of

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Red Colour

Green Colour

Blue Colour

Pink Colour

All food chains and food webs begin from

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Consumers

Green plants

Fungi and bryophytes

Dead organic matter

Which of the following sugar does not form a ring structure in a solution

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Glyceraldehyde

Ribose

Glucose

Fructose

Global warming is due to

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CFC's

SO₂

O₃depletion

CO₂

The animal that is caught and eaten is the

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Predator

Prey

Consumer

Both a and c

Green house effect, acid rain headaches and coughs are related to which of the followings?

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Oxides of nitrogen

Oxides of sulphur

CO

CFCs

Grasslands of tropic climate have woody trees and are called:

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Alpine

Boreal

Biome

Savanna

Rh factor is encoded by

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2 genes which occupy 3 loci

3 genes which occupy 2 loci

2 genes which occupy 2 loci

3 genes which occupy 3 loci

The study of relationship of an organism to their environment is knows as:

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biology

ecology

zoology

mycology

STH promotes_____ after puberty

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Protein synthesis

Cell differentiation

Metabolism

Cell division