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Class 10 Class 12
What are rare amino acids. Give an example?

The amino acids which are found in proteins, but are not specified by genetic code are called rare amino acids. For eg - selenocysteine.
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Give the names of two monosaccharide sugars.

Fructose and glucose are two monosaccharides
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What is the general formula of carbohydrates ?

The carbohydrate has a general formula - CnH2nOn Or (CH2O)n.
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What is the percentage of nucleic acids in cells ?

5 - 7 percent
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What are major elements of a cell ?

Carbon, hydrogen, oxygen and nitrogen are the major elements of a cell.
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Name one monosaccharide which provides energy ?

Glucose
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