Question # 1

Which of the following acts as template strand for reverse transcription

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Viral DNA

Viral RNA

Host DNA

Host RNA

When Fructose form ring structure, It is

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6 Cornered

5 cornered

4 cornered

3 cornered

Most of the proteins are composed of _____ types of amino acids

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170

150

25

20

Part of brain that is involved in learning

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Cerebrum

Thalamus

Cerebellum

Pons

The term ecology comes from the Greek words Oikos, meaning "the family household" and logy (logos) meaning:

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The study of

Living

Building

Niche

_____is the study of interaction between living organism and their environment

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Evolation

Genetics

Ecology

Sociology

The combination of many food chains is termed as

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Food chain

Food web

Trophic level

None of above

Rh factor or antigen was first studied in

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Man

Owl

Monkey

Fish

The study of human population and factor affecting it is called

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Population census

Population dynamics

Demography

Etymology

Nitrogen makes up ______ percent of the gases in atmosphere

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76

77

78

98

Herpes type-1 virus causes

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Pitted scars

Swollen neck

Rashes on genitals

Vascular lesions

RNA and Proteins are components of

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Chromosomes

Receptors

Secretions

Ribosome

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

------------------- are the autotrophs that capture and bring light energy into ecosystem

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Decomposers

Algae

Producers

None o these

The synthesis of Golgi bodies is initiated by

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Ribosomes

R.E.R

S.E.R

Lysosome

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

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Blood

Milk

Plasma

Tissue fluid

In rats whose adrenal medulla has been removed surgically, the ability to with stand any stress situation such as cold

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Is Enhanced

Is diminished

Remains unaffected

Is finished

It has duality in its functioning

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Pituitary gland

Pancreas

Gonads

Gut

Which of the following reaction is reverse of others

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Hydrolysis

Decondensation

Decomposition

Condensation

Endosymbiont hypothesis was first proposed by

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Lynn Margulis

Malthus

Cuvier

Darwin

The organelle that protect the cell from invading organisms is

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Centriole

Lysosome

Mitochondrion

Vacuole

Snails are the intermediate hosts of

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Fasciola hepatica

Schistoma

Taenia solium

Ancyclosoma duodenale

It is not a germ layer

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Ectoderm

Endoderm

Blastoderm

Mesoderm

Diseases in living organisms caused by parasites are called:

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Infestations

Plaques

Influxes

Swarms

Mycorrhiza is an association of

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Algae with roots of higher plants

Bryophytes with roots of higher plants

Fungi with roots of higher plants

Bacteria with roots of higher plants

The first comers in an area are termed as

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Consumers

Producers

Pioneers

All of above

Among the scientists who believed in divine creation as

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Darwin

Carolous Linnaeous

Lamarck

Wallace

Basically, all animals depend on plants for their:

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Living

Food

Life

Respiration

Genes for alpha and beta chains of hemoglobin are found on which chromosomes?

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Chromosome 16 alpha; chromosome 11 beta

Chromosome 11 alpha; chromosome 16 beta

Chromosome 11

Chromosome 16

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

Which of the following is a distinguishing character of sponges

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Tentacles

Ceoleteron

Choanocytes

Calcareous skeleton

Nutrient elements become the part of protoplasm during

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Photosynthesis

Decomposition

Fixation

Assimilation

______ components include all living organisms including plants and animals supported by biosphere

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Biotic

Abiotic

Physical

Both a and b

Grasslands of tropic climate have woody trees and are called:

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Alpine

Boreal

Biome

Savanna

The body of a Hydra can be divided in two equal halves vertically in

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One plane only

Two planes

Three planes

Any plane

Tundra ecosystem is a vast treeless region bordering the:

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Pacific ocean

Atlantic ocean

Arctic ocean

Arabian sea

In temperature deciduous forest the range of temperature is form:

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0∘C - 30∘C

4∘C - 30∘C

4∘C - 25∘C

4∘C - 40∘C

The land will be turned to barren land if there is:

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Little grazing

Moderate grazing

Over grazing

None grazing

Xerosere starts with __________ stage.

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Crustose lichen

Foliose lichen

Mass

Shrub

What is the theoretical number of chemically different dipeptide that can be made from 2 different amino acids

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1

2

4

8

Lumen of the cristae is the part of

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Inner membrane

Outer membrane

Inner compartment

Outer compartment

Consumers are the all the organisms, primarily animals. They obtain energy directly or indirectly from

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Producers

Consumers

Decomposers

All of the above

The amount of energy left after plants have met their respiratory needs shows up the plant:

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Not productivity

Gross productivity

Secondary productivity

Bio energy

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

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Niche

Terrain

Habitat

Domain

Common housefly is involved in spread of all diseases except

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Hepatitis

Malaria

Dysentery

Cholera

The idea of endosymbiont hypothesis was first proposed by:

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Lynn marguils

Wallace

Karlene Schwartz

Lamarck

Succinic acid is the ____ of succinic dehydrogenase which undergoes____

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Active site, reduction

Prosthetic group, reduction

Substrate, oxidation

Substrate, reduction

Which of the following kind of inhibitors don’t compete for active site of enzyme

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Irreversible competitive

Reversible competitive

Reversible non competitive

Both b and c

Which one of the following is site of oxidative Phosphorylation in mitochondria

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Cristae

Outer membrane

Matric

Ribosome

Traffic of substance between nucleoplasm and cytoplasm is controlled by

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Nuclear Envelope

Nuclear membrane

Nuclear pores

Endoplasmic reticulum

Soyabeans have been made resistant to a common

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Insecticide

Herbicide

Fungicide

Pesticide

What will be the risk of heamophilia in sons if father is haemophilic and mother is normal

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0%

20%

25%

50%

Bilirubin

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Turns skin Yellow

Damages brain cells

Causes jaundice

All of these

An animal that preys other animals is called:

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Predator

Parasite

Scavenger

Detritivore

Mutatuons are inherited only if they occur in the

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Gland cells

Gametes

Muscle cells

Somatic cells

What is cause of Eutrophication

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Excreta

Phosphate

Nitrates

All

The smallest known virus is

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HIV virus

HBV virus

Influenza virus

Polio virus

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

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Predation

Symbiosis

Parasitism

None of above

In hydrospheric ecosystem the exchange material and transfer of energy takes place.

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Within water and air

Within water and land

Within water

Within land and air

Ventral root of the spinal nerve contains

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Sensory nerve fibres

Motor nerve fibres

Mixed nerve fibres

All

Which of the following hormone affects the supply of testosterone

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LH

GH

FSH

Aldosterone

The change in structure of community of an ecosystem during a time period is called

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Succession

Evolution

Mutation

Regression

Three principal stages of nitrogen cycle are:

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Ammonification, Nitrification, and Assimilation

Ammonification, Acidification, and Assilimlation

Esterification, Nitrification, and Assimilation

Ammonification, Nitrification, and Denitrification

Methylation of proteins occur in

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Transport vesicles of endoplasmic reticulum

Lysosomes

Golgi apparatus

Transport vesicles of Golgi bodies

Animal cells differ from plant cells in having

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80 S ribosome

Chloroplasts

Mitochondria

Centrioles

Lamarck was incharge of invertebrate collection at Natural History Museum is

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Berlin

Paris

California

Brun

Pick the odd one

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Cellulose

Galactose

Agar

Pectin

Which of the following is dimer of glucose

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Sucrose

Fructose

Maltose

Cellulose

Choose the correct option about the following figure:

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A is showing Envelope

B is not showing envelope

C is showing RT

D is showing RNA

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

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Algae

Bacteria

Fungi

Plants

Major regional ecological community of plants and animals forms:

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Triomes

Biosphere

Biomes

Biogeography

The solar energy used to evaporate water, heat up soil and then lost to the outer space is:

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99%

77%

55%

33%

Which one of a endoparasite of organisms

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Fungi causes dandruff in hair

Tapworms

Earthworms

Lices

A Cell interacts with its external environment through

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Cell Wall

Nuclear membrane

Plasma membrane

Cytoplasm

Decomposers form _______ trophic level

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First

Second

Third

All

The pairs of gills present in cyclostomata are

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5-7

10-12

6-14

4-5

Ribozyme is found in

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Mitochondria

Cytoplasm

Lysosomes

Ribosomes

Newly synthesized Large proteins are digested into small viral proteins by

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Host protease

Viral protease

Viral RT

Host pepsin

What is the risk of a colour blind child in a family when mother is colour-blind but father is normal?

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100%

75%

50%

25%

Which one of the following acts as a site for storage of water and cells products or metabolic Intermediates?

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Chloroplast

Mitochondrion

Vacuole

Endoplasmic reticulum

The actual location or place where an organism lives is called its:

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Niche

Habitat

Abode

Terrain