Question # 1

The adult echinoderms have secondarily develop

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Bilateral symmetry

Radial symmetry

Both A and B

None

Biotic components of ecosystem are

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Animal and plants

Micro-organisms

Fungi

All of above

In case of hydra ectodermal cells get food from endodermal cells by

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Osmosis

Diffusion

Facilitated diffusion

None

Sinus venosus in case of fishes receives from the body

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Oxygenated blood

Deoxygenated blood

Both a & b

None

The % of protein in case of chromosomes is

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100%

80%

60%

20%

Penicillium a fungus has only______pair of chromosomes

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1

14

23

3

The greatest diversity is found in which zone

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Limnetic zone

Profundal zone

Littoral zone

None of these

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

If non-protein part is loosely attached with the substrate then it is called

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Co-enzyme

Prosthetic group

Activator

If the non-protein part is covalently bonded it is known aas

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Co-enzyme

Activator

Prosthetic group

Product

The term ecology comes from the word oikos which is a word

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Greek

Italic

Latin

French

When Cocci occur in pairs then arrangement is called

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Diplococcus

Staphylococcus

Sarcina

All of above

The instrument that is used ti measure the relative abilities of different pigments to absorb different wavelengths of light is

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Viscometer

Thermometer

Spectrophotometer

Electrometer

In which of the phase chromosome is duplicated structure which consists of 2-sister chromatids

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Hna phase

Prophase

Metaphase

Telophase

Which of the following method of asexual reproduction found in plants

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Multiple fission

Binary fission

Both A and B

Parthenocarpy and grafting

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