Do all the amino acids with aromatic side chains give positive result to Xanthoproteic acid test. Why?

What are the colour changes occur to the reducing sugars after benedict test is performed? Please mention the colour change observed for each reducing sugars in benedict test

Why is Hopkin's Cole test specific for tryptophan?

why would you perform an indole test?

A solution of flycine and a solution of albumin were prepared with the same concentration (g/L). One of the soutions turned light purple and the other dark purple for hte ninhydrin test. Which one would you expect to give the darker purple color? Explain.

4. a) The molecule below is a/n: amino acid dipeptide (circle one) tripeptide i b) Would the molecule below test positive in the biuret test? Why/why not? tu f If yes, label and point an arrow to the portion of the molecule responsible. the (biloa) nolls Η Ο H 188 OD CH₂SH NH3-C-C-NH-C-C CH3 stru

4. a) The molecule below is a/n: amino acid dipeptide tripeptide (circle one) b) Would the molecule below test positive in the biuret test? Why/why not? If yes, label and point an arrow to the portion of the molecule responsible. H. H. NH3-C-C-NH-C-C CH3 CH2SH

please sir please solve this matching question, thank you alot for ur help

Nitrate reduction test can be used to differentiate between Pseudomonads and Enterobacteriaceae. You inoculated your Nitrate broth with your unknown; after incubation, you added 5 drops of reagent A and 5 drops of reagent B. You observe a red color within 2 minutes. Is this a + or a - reaction? Assuming you did not get a red color, you then added a pinch of Zinc and this time tou obtained a red color. What does this mean?

What type of bond is necessary for a positive Biuret test?