Question # 1

PSC 101 has antibiotic resistance gene for.

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Tetracycline

Neomycin

Ampicillin

Ergotine

Bats and humming birds are called.

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Ectotherms

endotherms

Heterotherms

Mesotherms

What does not happen during inspiration in man?

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Intercoatals musles contract

Ribs are elevated

Diphragm becomedome- shaped

Ribs move forwards

The uterine layer which is shed with each monthly cycle is:

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Endometrium

Perimetrium

Tunica albuginea

Myometrium

In human, relay centre is located is

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Fore brain

Mid brain

spinal cord

Hind Brian

A plant has a growth pattern called

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Open growth

Closed growth

Round growth

The cerebrospinal fluid is similar in composition to

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Blood

Blood plasma

Blood serum

Blood proteins

Endangered species of plants have been recorded to more than.

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300

500

600

800

Cystic fibrosis patients lack a gene that codes for trans membrane carrier of.

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Chloride ion

Calcium ion

Sodium ion

Magnesium ion

The most toxic nitrogenous waste in animals is.

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Uric acid

ammonia

Creatinine

Urea

Chiasmata formation take place duirng.

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Leptotene

diakinesis

Diplotene

Pachytene

An association between two organisms by which both are benefited is called.

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Parasitism

commensalism

Mutualism

Predation

In 1999,transgenic crops were planted world wide on more than

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20 millions areas

35 millions areas

70 millions areas

90 millions areas

Temperature around 4^oC stimulates the production of.

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Florigen

Vernalin

Ethene

Auxins

The ultimate source of change is.

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Evolution

Mutation

Genetic drift

Migration

In skletal muscle, calcium facilitates contraction by binding to:

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Tropomyosim

Troponin

Actin

Myosin

Which of the following chromosome abnormalities lead to tallness, aggressiveness mental defect and anti social behavior.

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XXY

XXXY

XO

XYY

The abiotic component of an ecosystem is.

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Temperature

Producer

Consumer

Decomposer

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