Question # 1

Which statement about prokaryotic cells is true

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Prokaryotes have a definite nucleus

They are modern type of cells

Fungi and protista included in prokaryotes

Their nuclear material is directly submerged in the cytoplasm

Which of the following is found in all bacteria

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Granules

Slime

Flagella

Ribosomes

Which of the genes can be synthesized in the laboratory

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Large genes

Very small

Medium sized genes

Both A and B

Charles Darwin observed and collected thousands of specimens of diverse faunas and floras of

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South America

Asia

Western America

Europe

Highly condensed portion of chromatin is called

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Euchromatin

Heterochromatin

Chromatin

All of above

The division karyokinesis included

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Prosphase

Metaphase & anaphase

Telophase

All of above

Gene can be synthesized in the laboratory from messenger RNA, using reverse transcriptase this synthesized molecule is called

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Complementary RNA

Complementary DNA

Both A and B

None

All vertebrates have

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Open circulatory system

Closed circulatory system

No transportation system

Transportation occurs through skin

Littoral zone is

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Beyond the shore

Near the shore

Mid the shore

Bottom zone

Sinus venosus in case of fishes receives from the body

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Oxygenated blood

Deoxygenated blood

Both a & b

None

Plants that are stimulated to flower by exposure to low temp is called

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Biennial

Perennial

Vernalization

Parthenocarpy

Sporogenesis is the formation of

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Egg

Sperms

Spores

Embryo

Air is polluted due to industrialization and automobiles polluted air does not contain which one of them

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CO

Hydrocarbons

Oxides of N 8 sulpher

CO₂

Leguminous plants have nodules on their roots which contains

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Saprophytic bacteria

Parasitic bacteria

Nitrogen fixing bacteria

None

The direct or indirect source for food shelter, clothing,fuel for humans is

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Water

Land

Air

Environment

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