E-PolyLearning

6. NAD is an abbreviation for
a. Nicotine Abusive Department
b. Nicotine Avoid Directions
c. Nicotinamide adenine dinucleotide
d. Nicotinamide dinucleotide
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Answer: (c).Nicotinamide adenine dinucleotide

7. A protein which act as a carrier and transport oxygen and carbon dioxide in human body is known as
a. hemoglobin
b. immunoglobulin
c. lipids
d. antibody
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Answer: (a).hemoglobin

8. Greater number of carbon atoms in chain results in higher
a. melting point
b. boiling point
c. freezing point
d. stability
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Answer: (a).melting point

9. Number of nucleotide in a tRNA chain length is
a. 70-90
b. 75-95
c. 70-80
d. 75-90
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Answer: (d).75-90

10. Main sources of carbohydrates are
a. milk
b. water
c. green plants
d. proteins
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Answer: (c).green plants

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