Question # 1

A non - metal

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Na

Li

H

Be

An atom containing two electrons.

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Be

Li

H

He

A bacteria is used in genetic engineering because of their.

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Size

Nucleus

Gene

Fast rate of reproduction

Plasmid and attached foreign gene with it are collectively called.

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Recombinant cell

Recombinant chromosomes

Recombinant DNA

Recombinant plasmid

A typical chromosoes consists of arms.

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Two

Three

Four

Five

Reduction of chromosomes takes place during.

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Mitosis

Meiotic -I

Meiotic -II

Both mitosis and meiotic -II

Consumers that actively hunt other organism are called.

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Prey

Competitor

Predator

Symbiont

In humans, the eye colour is developed due to the effects of.

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Diet

Environment

Genes

Both a and b

The image formed by a convex mirror is.

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Real and upright

Real and inverted

Virtual and upright

Virtual and inverted

Toothpaste is a ........ paste like material used for cleaning and polisheing teeth.

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Liquid

Gas

Semi -Solid

Solid

The organism whose cells and plasmids are usually used in genetic engineering are.

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Viruses

Bacteria

Algae

Fungi

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