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Radial Diffusion Test is used for the detection of

  • A.Colostrum
  • B.Heptoglobulins
  • C.Hemoglobin
  • D.Amylase

Answer: D

The radial diffusion test is used for the detection of amylase. The sample is put in a well in a gel with starch, and amylase diffuses out and digests the starch, which is shown by iodine as a clear ring whose diameter shows the amount. It is used for saliva stains.

Colostrum, haptoglobin and haemoglobin are identified by other tests, such as precipitin tests or immunological methods. Radial diffusion with starch fits only the enzyme amylase.

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