Question # 1

Tubes that connect the middle ear with the throat in humans are called.

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eustachian tube

Fallopian tube

Neural tube

Nephridial tube

Archaebacteria tolerate temperatures up to

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10^oC

40^oC

67^oC

120^oC

The fishes which drink large amount of sea water and excrete concentrated urine are.

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Cartilaginous fishes

Bony fishes

Lung fishes

Jawless fishes

Detection of changes and signaling for effector's response to control system is called.

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-ive feedback mechanism

transformation

feed back mechanism

Nephridial system

The first restriction enzyme was isolated by

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Kary mulis

Hamilton O. smith

Sagar

Maxam gilbret

Hemophilia is

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X linked dominant trait

X linked recessive trait

Sex influenced trait

Sex limited trait

The phase of meiosis during which nuclei disappear int he cell is called.

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Pachytene

Leptotene

Zygotene

Diplotene

Plantigrade mode of Locomotion is.

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Monkey

Rabbit

Goat

Rodents

The number of human spinal nerves is:

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24

50

62

64

ABO blood group system was discovered by

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Karn Ladsteiner

Bernstein

Correns

T.H.morgans

Opening of flower bud floows.

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Photonasty

epinasty

Haptonasty

Hyponasty

Diseases in living organisms caused by parasites are called.

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Infestation

Endoparasites

Disinfestation

Ectoparasites

In eukaryotic mRNA molecule there are 90 nucleotide involved in translation process. What is the number of amino acid in the protein formed by this mRNA molecules?

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29 Amino acids

30 Amino acids

45 Amico acids

90 Amino acids

In mitochodria UGA codon act to specify __________ instead stop codon:

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Argenine

Valine

Glumatic acid

Trytophan

Luteinizing hormone induces.

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Flowering

Vernalization

Ovulation

Menopause

Interatrial vertebrates, the gill pouches develop into.

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Gills

Lungs

Nose

Eustachian tube

The decline in thickness of the ozone layer is caused by increasing level of

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Chlorofluorocarbon

Nitrogen

Chlorine

Carbon dioxide

Bombay phenotype is an example of.

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Pleiotropy

Probability

dominance

epistasis

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