From four corners of a square sheet of side 4 cm, four pieces,each in the shape of arc of a circle with radius 2 cm, are cut out.The area of the remaining portion is :

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#Question id: 15171

#Section 6: Plant, Animal and Microbial Biotechnology

Fermentative microorganisms form organic acids from carbohydrates, whereas chemolithotrophs like Thiobacillus oxidize reduced

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#Question id: 180

#Section 2: General Biology

Which of the following statements about aromatic amino acids is correct?

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#Question id: 1858

#Section 2: General Biology

Which of the following is an example of an anti-tumor vaccine?

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#Question id: 2268

#Section 3: Genetics, Cellular and Molecular Biology

Within chloroplasts, light is captured by

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#Question id: 200

#Section 2: General Biology

When NAD+ is reduced, the UV absorbance at 340 nm