Question # 1

Each tRNA has a sequence of three bases called anticodon which is complementary to codon of

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rRNA

tRNA

mRNA

snRNA

In living thing, the behavior activities occurs at regulars intervals which are called.

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diumal rhythms

Blorhythms

Circannual

Orcadian

In juxtamedullary nephrons additional capillaries extend down to form at.

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Vasa deferontia

Vasa efferetia

Vasa recta

Vasa hecta

Endosymbiont hypothesis was proposed by.

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Wallace

Lamarck

Lynn Margulis

Linnaeus

In neurons the message is transmitted across synapse in the form of chemical messenger called.

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Nerve impulse

Synaptic vesicle

Neurotransmitters

Communlaction

Unequal separation of chromosomes is called.

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Disjunction

Separation

Non disjunction

Metastasis

A diluted solution compared to the cell concentration is termed as.

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Hypertonic

Hypotonic

Isotonic

Paratonic

In human pair of cranial nerves are

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12

14

16

18

Arthritis covers over 100 different types of inflammatory or degenerative diseases that damage the

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Legs

Arms

Sutures

Joints

The sensation of pain is produced by

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Chemoreceptors

Photoreceptors

Nociceptors

Mechanoreceptors

A weed called mouse eared cress is engineering produce a biodegradable plastic called.

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Luciferin

Digitoxin

Polyhydroxy butyrate

Pheylalanine

Which pair of chromosome fails to segregate in down's syndrome.

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7th

15th

19th

21st

No of chromosomes in Honey bee are.

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6

20

32

40

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

A plant has a growth pattern called.

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Open growth

Meristem

Growing point

Apical

Genes that code for therapeutic and diagnostic proteins are incorporated into the animal's DNA and the proteins appear in the animal's

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Urine

Blood

Sweat

Milk

Gastrin is the hormone produced by mucosa of

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Oesophagus

Small intestine

Stomach

Large intestine

Lyell published the principle of.

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Population

Community

Geology

Blome

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