Question # 1

Spores which are formed inside bacterial cells are called.

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Cysts

Spores

Endospores

All of these

James Watson and Francis Crick proposed the structure of DNA in:

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1953

1963

1933

1922

International breeding between individuals for certain traits, or combination of traits is called as.

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Variations

Evolution

Natural selection

Artificial selection

Which one is not biotic factor.

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Plants

Animal

Mud

Bacteria

The plants living in dry environment are

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halophytes

hydrophytes

epiphytes

xerophytes

the type of symbolic association in which partner gets benefits while other is neither benefited nor harmed is called:

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Commensalism

Mutualism

Parasitism

Predation

Pathogens contain special proteins called.

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Antigens

Antibodies

Antibiotics

Antiseptics

The rise of the bread is due to;

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carbon dioxide

ethanol

acetaldehyde

pyruvic acid

In which of the following disease, the patient has usually lost 50% to 70% of his/her lung tissue when symptoms appears?

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Pneumonia

Asthma

Emphy sema

Bronchitis

Amount of Urea in normal chemical composition is.

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9.3 g/l

1.87 g/l

1.17 g/l

0.75 g/l

The process of guttation occurs in the plant.

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Pine

Grass

Keekar

Rubber plant

Lungs are enclosed in a membrane called;

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peritonium

pleural membrane

epidermis pericardium

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