Watson-Schwartz test
A qualitative screening test for diagnosis of acute intermittent porphyria by the addition of Ehrlich’s reagent and saturated sodium acetate to the urine; a pink or red colour indicates the presence of porphobilinogen or urobilinogen; the former indicates porphyria, the latter does not; therefore, positive results require further differential extraction with butanol and chloroform to eliminate false-positive results due to urobilinogen.
DNA is a double helix structure comprised of nucleotides. A nucleotide, in turn, is made up of phosphate molecule, deoxy..
This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..
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Gregor Mendel's studies into Monohybrid and Dihybrid crossing and Charles Darwin's study of evolution and natural select..