Question # 1

Allosteric enzymes have ___ major sites

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1

2

3

4

Skeleton of echinoderms is originated from

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Ectoderm

Endoderm

Mesoderm

Epidermis

Shallow water zone of the lake near the shore is called:

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Intertidal zone

Littoral zone

profundal zone

Limnetic zone

Vector for spread of African sleeping sickness is

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Anopheles

Commonhouse fly

Tse-tse fly

Honey bee

Endocytosis of an apoptotic body is termed as

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Pinocytosis

Exocytosis

Phagocytosis

Apoptosis

The idea of inheritance of acquired characteristics was presented by

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Margulis

Lamarck

Linnaeus

Cuvier

About ______% of solar energy is used to evaporate water, heat up soil and then lost to the outer space

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95

97

98

99

A group of interbreeding individual occurring in space and times is called:

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Community

Population

Generation

Kingdom

The semicircular channels and system of tubes found in cytoplasm are known as

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Ribosomes

Glyoxisomes

E.R

Vacuoles

A blue cone monochormate

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Can perceivetwo colours

Can't perceiveany colour

Can perceive only blue colour

Can perceive only red colour

Puffiness of hands is the character of

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Graves disease

Addinsons disease

Myxedema

Cretinism

The idea of endosymbiont hypothesis was first proposed by:

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Lynn marguils

Wallace

Karlene Schwartz

Lamarck

Tritanopia is blindness of

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Red Colour

Green Colour

Blue Colour

Pink Colour

The relationship of a single population towards its environment is called

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Ecology

Synecology

Autoecology

All of foregoing

There is an association between two organisms, which brings benefits to both the organisms

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Predation

Symbiosis

Parasitism

None of above

Dormancy in animals through a drought or dry season is called:

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Eurythermal

Diapause

Aestivation

None of these

In coniferous alpine and boreal forests the winter is:

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Longer and little

Shorter and colder

Longer and colder

Shorter and little warmer

Nutrients required by organisms in small quantity or in trace amount like zinc, molybdenum, iron, iodine are:

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Macronutrients

Micronutrients

Mega Nutrients

Both a & c

Which of the following is not affected by enzymes

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Nature and properties of end products

Nature and properties of reactants

Speed of biochemical reaction

Efficiency of biochemical reaction

______ lichens are the examples of foliose lichens

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Dermatocarpon

Permellia

Both a and b

None of above

Which hormone require 2nd messenger

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Insulin

Estrogen

Progesterone

Testosterone

Parasitism is an association between a host and a parasite, which ivolves providing the parasite with:

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Food

Protection

Conditions for its survival

All a, b, c

Highest degree of regeneration is present in sponges because of

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Undifferentiated cells

Simplest organization

Ability to reproduce

Absence of germ layers

In coniferous alpine and boreal forest the temperature ranges from:

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0°C to 10°C

Below freezing point up to 10°C

Below freezing point up to 15°C

0°C to 15°C

The term ecology originally was used in 1866 by the German zoologist:

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Charles Eton

Ernst Haeckel

Joseph Grinnell

Carolus linnaeus

Causative agent of mysterious brain infection is composed of

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DNA+Protein

RNA+Protein

RNA only

Protein only

Vaccine for___ is under trial administration

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Hep A

Polio

Measles

AIDS

Nicotinamide adenine dinucleotide is an example of

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Cofactor

Coenzyme

Prosthetic group

Nucleotide

In which types of soil does water logging occur?

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Silt

Clay

Gravel

Sand

All chromosomes other than sex chromosomes are called :

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Linked chromosomes

Atusomes

Autophagosommes

Dictyosomes

bare rocks are the habitats of

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Mosses

Lichens

Grasses

Trees

Chemical formula of pentose sugar present in DNA

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C₅H₉O₅

C₅H₁₀O₅

C₅H₁₀O₄

None

The rate of enzyme action will be minimum at

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Optimum pH

Optimum temperature

Optimum conditions

Maximum temperature

The succession started on bare area is called as

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Primary succession

Secondary succession

Tertiary succession

Quartnary succession

Most of the plant cells lack following organelles EXCEPT

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Flagellum

Lysosome

Centriole

Mitochondria

The two linked genes A and B with a 30% recombination frequency must be

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15 units apart

30 units apart

60 units apart

90 units apart

The sucessions started on water is called as

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Hydrosere

Xerosere

Derosere

None of the above

Food web is the group of various

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Food substances

Food chains

Trophic levels

All of these

Which element is the most potent source for the depletion of ozone layer

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Chlorine

Fluorine

Carbon

All of them

In an ecosystem after succession, a new invaders are called

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Pioneers

Predecessors

Climax community

None of these

Part of brain that is involved in learning

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Cerebrum

Thalamus

Cerebellum

Pons

The type of association between two organisms, which brings benefit to both the organisms is called

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Commensalism

Predation

Mutualism

Parasitism

Which of the following things were not collected by Darwin?

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Specimens of diverse faunas and floras of south America

South American fossils

13 types of finches

Turtles

Which of the following acts as template strand for reverse transcription

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Viral DNA

Viral RNA

Host DNA

Host RNA

The soil of the deciduous forest is:

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Yellow

Grayish brown

Grayish black

Black

The larva formed during the life cycle of Annelida is

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Glochidium larva

Bipinnaria larva

Trochophore larva

Tornaria larva

Animals involved in the construction of corals are

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Polyps

Medusae

Gonozooids

None

According to fluid mosaic model of cell membrane

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The most common type of molecules in the membrane are proteins

Basic membrane structure results from how proteins interact with water

The membrane is highly mobile mixture of phospholipids and proteins

The unique properties of cell types are determined by their phospholipids

Point mutation occurs in

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Sickle cell anemia

Phenylketonuria

Alkaptonuria

All

Genome of the acellular particle mainly comprised of

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Protein

Sugars

Lipid

Nucleic acid

Which of the following traist is transmitted directly from an affected to only its sons?

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autosomal

X-linked

Y-linked

X and Y linked

In tertiary structure, presence of hydrophilic amino acids at the surface of proteins and hydrophobic amino acids buried inside, indicate

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Nature of bonding

Function of protein

Nature of medium

Shape of protein

The major unit of ecology is:

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Biosphere

Ecosystem

Community

Population

An animal that preys other animals is a

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Predator

Carnivore

Consumer

All

It does not produce any hormone

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Anterior pituitary

Posterior pituitary

Pancreas

None

--------- Develop the basic formwork of plasma membrane:

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Phospholipids

Glycoproteins

Glycolipids

Man has ____________ linkage group

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23

21

25

46

Water changes its temperature:

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Faster than air

Same as air

Slower than air

Sometime slower and sometimes faster

Which type of nucleic acid is found in the capsid of HIV

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RNA

DNA

ssDNA

None

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

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Autecology

Synecology

Both a & b

None

Parasites that live inside the body of the host:

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Endoparasites

Ectoparasites

Mesoparasites

Both a & c

Both organisms benefit from the ______ relationship

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Mutualism

Commensalism

Parasitism

All of above

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

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dominance

incomplete dominance

over dominance

codominance

Animal cells differ from plant cells in having

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80 S ribosome

Chloroplasts

Mitochondria

Centrioles

Virus without envelope is

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HIV

Hepatitis B

Polio virus

Hepatatis C

The oxygen concentration in the air is maintained by the green plants which release it during

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Fermentation

Respiration

Photosynthesis

Chemosynthesis

The succession which occurs in dry soil or rock is

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Hydrosere

Xerosere

Decrosere

All of these

Genes can be mapped on chromosomes on the basis of

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Sex linkage

Assortment

Recombination frequency

Gene sequencing

F1 particles contain enzyme complex for:

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Protein synthesis

ATP synthesis

DNA replication

Respiration

Homogenetistic acid is oxidized rapidly when exposed to air, turning the urine

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White

Purple

Blue

Black

Fungi as well as bacteria are generally known as

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Producers

Consumers

Decomposers

None

Food web maintains the stability of

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Environment

Biosphere

Ecosystem

Biotic components

Which of the following is a living character of virus

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Formation of Crystals

Production of new viral particles

Coordination

Metabolism

Actual place or location where an organism lives is called us:

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Niche

Terrain

Habitat

Domain

The chief reservoir of nitrogen is the

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Atmosphere

Water

Soil

Rain

These are the receptors which respond to the mechanical condition of internal organs

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Nocireceptors

Receptors of skin

Receptors of stomach wall

Receptors of eye

Tiny shaped structure located deep between cerebral hemispheres

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Thyroid gland

Pitutary gland

Pineal Gland

Corpus callosum

Primary succession that starts on a dry soil or rock is called:

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Hydrosere

Derosere

Xerosere

Aquasere

X and Y linked genes are also called as

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Sex genes

Dominant genes

Autosomal genes

Pseudoautosomal genes

The term originally was coined by the German zoologist Ernst Haeckel in

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1666

1766

1966

1866