Question # 1

Plasmid and attached foreign gene with it are collectively called.

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Recombinant cell

Recombinant chromosomes

Recombinant DNA

Recombinant plasmid

Which of the following is magnetic substance.

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Glass

Marble

Gold

Cobalt

The section of DNA which has information for making a specific protein is called.

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DNA strand

Nucleotide

Chromosomes

Gene

Green house gases is

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Carbon di oxide

Methane

Oxides of nitrogen

All these

Peipheral nervous system consist of

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Network of nerves

Spinal cord

Brain

PNS and CNS

These salts are responsible for preventing heart attacks.

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Salts of sodium

Salts of calcium

Salt of potassium

Salt of Magnesium

In humna body spinal nerves have pairs.

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12

13

31

32

Mass number of oxygen is

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6

16

26

36

Speed of light through air is about.

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300000 km/s

250000 km/s

225000 km /s

200000 km /s

Two equal forces actat the same time on the same stationary object but in the opposite directions. Which statement describes the object's motion.

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The object changes direction

The objet accelerates

The object remains stationary

The object moves at a constant speed

A force of 1800 N is acting on the surface area of 0.06 m2. The pressure exerted by he force will be.

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3 kPa

30 KPa

300 kPa

3000 kPa

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