Question # 1

Fern prothallus is

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sporophyte

saprophyte

Gametophyte

Seed

Plasmid is

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Essential for bacterial growth and metabolism

Drug resistant having disease and insect resistant gene

Essential for bacterial growth only

All of above

A rasping tongue like radula having horny teeth is present in.

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sponges

Molluscs

Coelonterates

Annelids

Chang in water potential of a system due to the presence of solute molecules is called.

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Pressure potential

solute potential

Gravitational potential

Matric potential

Eukaryotes have pores per nucleus.

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3000

30,000

6 or 8

3 or 4

The sexual process is exhibited by most cities by

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Binary fission

Budding

Conjugation

Fertilizations

The animals having structurally and functionally intermediate teeth between herbivores and carnivores are

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Insectivores

Detritivores

Saprozoic

Omnivores

An isolated virus is not considered living, since it

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Separates into two inert parts

Cannot metobolize

Rapidly looses its gnome chemically inert

Is coated with an airtight shield

To biological function of a protein is determined by its

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Primary structure

Secondary structure

Tertiary structure

Quaternary structure

Cell wall of Archaebacteria does not contain.

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Chitin

Cutin

Peptidoglycan

Cellulose

Lungs of birds have thin walled ducts called.

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Alveoli

Trachea

Bronchi

Parabronchi

In terrestrial plants major mechanical stress is imposed by.

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Gravity

Temperature

Wind

Soil

Nissl's granules are group of.

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Mesosomes

Lysosomes

Ribosomes

chromosomes

The central station of metabolism and the body central metabolic clearing agent is.

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Stomach

Liver

Kidney

Gut

Adenine and guanine are called

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Purines

Pyrmidines

Both a & b

None of these

The protein filament whihc binds to the calcium is

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Actin

Myosin

Troponin

Tropomyosin

Each Okazaki fragment is synthesized by.

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RNA Polymerase

DNA polymerase

DNA polymerase I

DNA polymerase III

What would be expected to happen if all the nitrogen-fixing organisms ceased to exist?

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There would be no significant change in number of animals

The total number of biomass would be reduced

All organisms would die out

The nitrogen level of the atmosphere would be increase

Genes that code for therapeutic and diagnostic proteins are incorporated into the animal's DNA and the proteins appear in the animal's

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Urine

Blood

Sweat

Milk

The total energy from the sun is happened by the producers in an ecosystem is about?

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20 %

10 %

5 %

1 %

The change of frequency of alleles at locus that occur by chance is called.

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Mutation

Migration

Genetic drift

Selection

Genetic code for the amino acid methionine is.

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AUC

UGC

CGC

AUG

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