Question # 1

Of all the excretory products, the principal one is.

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Ammonia

Urea

Uric Acid

Billrubin

In spermatophytes important step in land adaptation is the evolution.

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Seed coat

Fruit

Pollen tube

Flower

Which one is not desert.

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Thar

Thal

Sahara

Talga

Diseases in living organisms caused by parasites are called.

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Infestation

Endoparasites

Disinfestation

Ectoparasites

Pressure filtration is kidney specifically occurs at

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Vasa recta

Bowmann's capsule

Urine collecting

Loop of henle

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

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Chlorofluorocarbon

Nitrogen

Chlorine

Carbon dioxide

The first restriction enzyme was isolated by

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Kary mulis

Hamilton O. smith

Sagar

Maxam gilbret

The term niche was first proposedly joseph Grinnell an American.

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Embryologist

Ecologist

Ornithologist

Physiologist

The means by which recombinant DNA is introduced into a host call is called

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Plasmid

Carrier

Vector

Lifter

Cardiac muscles are muscles of the

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Liver

Stomach

Kidney

Heart

The numebr of cervical vertebrae are.

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7

12

33

32

Luteinizing hormone induces.

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Flowering

Vernalization

Ovulation

Menopause

RNA polymerase II synthesize.

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mRNA

tRNA

rRNA

cDNA

The microtubules of mitotic apparatus are composed of protein tubulin nd traces of.

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DNA

RNA

Lipids

Terpenoids

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

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Argenine

Valine

Glumatic acid

Trytophan

Human skin colour is also a quantitative trait which is controlled by

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3 - 6 gene pairs

1 - 3 gene pairs

None of these

Blue cone monochrome may is an X linked trait is which.

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Red cone cells are absent

Green cone cells are absent

Both red and green cone cells are absent

Blue cone cells are absent

According to endosymbiont hypothesis, the aerobic bacteria developed into.

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Ribosome

Lysosome

Mitochondria

Golgi apparatus

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