Question # 1

___ gives blue color with iodine

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Glycogen

Dextrin

Cellulose

Starches

Puffiness of hands is the character of

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Graves disease

Addinsons disease

Myxedema

Cretinism

Which phenomenon reduces the chances of genetic recombination and variations among offspring ?

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linkage

crossing over

independent assortment

dominance

Among the scientists who believed in divine creation as

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Darwin

Carolous Linnaeous

Lamarck

Wallace

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

Allele for whiteness in Drosophilla is

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Recessive

Codominant

Dominant

Partially dominant

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

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Commensalism

Predation

Mutualism

Parasitism

On poles, the average temperature is

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Zero°C

5°C

Below freezing point

None

The simplest mono saccharide containing keto group is:

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Glyceraldehyde

Glucose

Dihydroxyacetone

Ribose

Which eat consumers

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Predators

Carnivores

Omnivores

All

If you are studying the structure of HIV , you will observe spikes associated with the

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Core

Capsid

Envelope

Genome

Essay on "Principles of geology" was published by

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Wallace

Malthus

Lyell

Cuvier

Which characteristic is common in both cnidarians and flatworms

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Digestive system with a single opening

Dorsoventrally flattened bodies

Radial symmetry

Flame cells

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

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2

3

1

4

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

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Niche

Terrain

Habitat

Domain

The rough endoplasmic reticulum is involved in

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Synthesis of proteins

Storage Of Ca+₂ ions

Synthesis of lipids

Detoxification of drugs

Provirus is

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Genome of bacteriophage

Genome of HIV uncoiled in Host cell

Genome of HIV incorporated in Host genome

Genome of a host

Global warming is the result of

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Ozone layer depletion

Acid rain

Green house gases

All of them

The first comers in an area are termed as

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Consumers

Producers

Pioneers

All of above

It does not produce any hormone

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Anterior pituitary

Posterior pituitary

Pancreas

None

Infestations are the diseases which are caused by ________ in living organisms

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Worms

Saprophytes

Bacteria

Virus

If six cells out of 10, do crossing over what will be percentage of cross over gametes

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60%

30%

40%

50%

A process in which one organism get benefit from the relationship is known as

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Grazing

Commensalism

Symbiosis

Mutualism

Notochord is present throughout life in

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Urochordates

Chordates

Cephalochordates

Vertebrates

Parasites which live inside the host body is called:

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Ectoparasite

Endoparasite

Intestinal parasite

Muscular parasite

Taj Mahal's marble has been affected by

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CFC's

Lead pollution

Acid rain

None

In case of sickle cell anemia, in place of glutamic acid, _________ is found

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Histidine

Valine

Proline

Leucine

Which hormone require 2nd messenger

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Insulin

Estrogen

Progesterone

Testosterone

The ecosystem consists of interacting components,

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Biotic

Abiotic

Bioic and Abiotic

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

Darwin proposed a mechanism for evolution, which he termed

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Natural selection

Special reaction

Adaptation

Descent with modification

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

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Man, Chimpanzee

Chimpanzee, Potato

Man, Potato

Potato, Tomato

Food web maintains the stability of

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Environment

Biosphere

Ecosystem

Biotic components

What are the environmental buffers?

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Trees

Animals

Factories

Microbes

Catalase and chymotrypsin have similar

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Substrate

Product

Optimum pH

Metabolic impact

Allele for whiteness in Drosophila is :

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Recessive

Codominant

Dominant

Partially Dominant

Which one of the following is not the main ionic nutrient

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Ca

Na

K

U

______ lichens are the examples of foliose lichens

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Dermatocarpon

Permellia

Both a and b

None of above

Polytrichum is a

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Lichen

Algae

Liver worts

Moss

The predeter and prey relationship is called as

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Predation

Animes

Parasitism

None of above

Chemical nature of spikes present on HIV

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Protein

Carbohydrate

Glycolipid

Glycoprotein

The deficiency of which one of the following is cause of goiter

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Iodine

Calcium

Potassium

Iron

Genome of the acellular particle mainly comprised of

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Protein

Sugars

Lipid

Nucleic acid

Which can convert glucose to glucose 6 phosphate

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Hexokinase

Glucokinase

Phospho fructokinase

Both a & b

Parasites that live inside the body of the host:

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Endoparasites

Ectoparasites

Mesoparasites

Both a & c

Leech is preferably a

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Host

Parasite

Predator

Mutualist

Nucleus is visible when the cell is in ____ stage

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Non-dividing

Dividing

active

Both a and b

Predator-prey relationship has a significant influence on:

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Distribution of organisms

Abundance of organisms

Both a & b

Non-availability of organisms

A group of ribosomes attached with same mRNA form polysome for

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Better expression of Gene

Rapid production of protein

Increased production of protein

Protein export

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

Pick up the wrong statement from the following

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Oils are lighter than water

Animal fats are solid at room temperature

Specific gravity of fats is higher than water

Fats containing saturated fatty acids are solid

Which oxides causes headache and brain damage

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Nitrogen

Lead

CO₂

CO

Over-grazing may lead to:

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Desert

Tundra

Taiga

Grassland

Regulation of hunger and menstrual cycle is controlled by

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Cerebrum

Thalamus

Hypothalamus

Pons

Decrease in progesterone level in blood stimulates the secretion of

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Estrogen

FSH

Cortisol

Oxytocin

A change in the community structure of an ecosystem over a period of time is:

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Progression

Sequence

Succession

String

It has duality in its functioning

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Pituitary gland

Pancreas

Gonads

Gut

Green, plants are basically:

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Producers

Consumers

Decomposers

None of these

Insulin is a/an:

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Osmotic Protein

Transport Protein

Regulatory Protein

Catalytic Protein

Xerosere starts with __________ stage.

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Crustose lichen

Foliose lichen

Mass

Shrub

Which of the following acts as template strand for reverse transcription

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Viral DNA

Viral RNA

Host DNA

Host RNA

The particles which do not contain any nucleic acid are

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Viruses

Prions

Viroids

All

The amount of energy left after plant have met their respiratory need is net primary production called as

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Mass

Gross production

Biomass

None

Which of the following has chitinous cuticle in the exoskeleton

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Arthropoda

Porifera

Echinodermata

Annelida

The productivity of aquatic ecosystem is basically determined by the:

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Light and nutrients

Light and carbohydrates

Light and proteins

Light and minerals

It is not a symptom of AIDS

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Swollen lymph nodes

Loss of immunity

Swollen neck

Pneumonia

Primary succession that starts in a pond is called:

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Hydrosere

Derosere

Xerosere

Aquasure

Tape worm is the example of

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Endoparasite

Ectoparasite

Outer parasite

All of above

Allosteric enzymes have ___ major sites

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1

2

3

4

Insect and flower relationship is the example of

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Mutualism

Commensalism

Parasitism

All of above

It is incorrect statement about hormones

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Endocrine secretion

Initiate metabolism

Organic

Transported by blood

Darwin collected 13 types of birds of :

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Robins

Sparrows

Kingfishers

Finches

Between 80 to 90% of the original energy is lost as heat as a byproduct of

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Photosyntheis

Urine

Respiration

All of the above

Fungi and bacteria are:

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Producers

Consumers

Decomposers

Predators

The Organic biomolecule which is widespread in bacterial animal and plant cells is

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Wax

Glucose

Acyl glycerol

Phospholipids

Chemical formula of pentose sugar present in DNA

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C₅H₉O₅

C₅H₁₀O₅

C₅H₁₀O₄

None

Osteoporosis is caused by lack of

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ADH

Melanin

Estrogen

STH

Deficiency of sex hormones in adults results in

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Sexual immaturity

Mortality

UTI

sterility

In lithospheric ecosystem the availability of water is:

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Unlimited

UniForm

Limited

Zero

A biotic components includes the components like:

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Air, water, and animals

Air, soil and plants

Air, water and soil,

air, soil, and, animals