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Biology

Biology
At which stage in its life cycle does the silkworm yield the fiber of commercial use

Larva
Egg
Pupa
Imago

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Biology
Which chemical is not found in DNA nucleotides?

Adenine
Uracil
All of these
Thymine

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Biology
Among the many substances manufactured commercially by means of ________ are acetic acid,acetone,butanol,lactic acid and several vitamins.

Bacteria
Fungi
Viruses
Yeast

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Biology
Digestion started in man from

Mouth
Rectum
Stomach
Intestine

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Biology
The main function of Henle's loop is

Conservation of water
Filtration of blood
Formation of urine
Passage of urine

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Biology
Which one of the following vitamins is known as the anti sterile factor ?

Retinol
Ascorbic acid
Riboflavin
Niacin

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