Question # 1

Which of the following component DNA contains

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Nitrogen Group

Five-carbon sugar

Nitrogen containing bases

All of above

Ciliates are unicellular organisms with a flexible outer covering called a

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Chitin

Epithelium

Pellicle

Cell membrane

Which of the following is not an organic compound

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Carbohydrates

Proteins

Lipids

CO₂

In living organisms,water quantity is

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70 → 90%

80 → 70%

60 → 70%

50 → 50%

Who hypothesized that the organisms involved through the inheritance of acquired character

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Larmark

Darwin

Hutton

Maltus

Plasmids are extra circular DNA molecules having genes for

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Antibiotic resistance

Fertility

Both A and B

None

Chemically 2ndary cell wall composed of

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Inorganic salts

Silica

Waxes

All of above

All vertebrates have

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Open circulatory system

Closed circulatory system

No transportation system

Transportation occurs through skin

Air,water,food,land,forests and wild life are

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Renewable resources

None renewable resources

Both A and B

None of these

The enzyme cuts the DNA fragment with two ends

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Sticky ends

Blunt ends

Both A and B

None

Chloroplasts are present mainly in

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Epidermis

Mesophyll tissues

Stoma

Vascular bundle

The Cocci are

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Rod-shaped

Spiral shaped

Spherical or oval

Triangular shape

Diploblastic animals show

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Higher degree of specialization

Lesser degree of specialization

Medium degree of specialization

None

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