A hypothetical amino acid has a carboxylic acid as part of its side chain. Which of the following properties does it have?
charged
Hydrophobic
Nonpolar
none of the above

Imagine that you have produced several versions of lactase, each of which differs from normal lactase by a single amino acid. describe a test that could indirectly determine which of the versions significantly alters the three-dimensional shape of the lactase protein.

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?