You have isolated a new protease that cleaves peptide bonds following Asp and Glu. Based on its inactivation by DIPF, you suspect that it may utilize a mechanism similar to chymotrypsin. The difference in specificity might be explained by:

(A) the presence of a positively charged residue in the S1 binding pocket.
(B) the replacement of serine-195 with a positively charged residue.
(C) the presence of a negatively charged residue in the S1 binding pocket.

a motor homunculus represents a map of brain areas dedicated to motor processing for different anatomical divisions of the body.

homunculus represents the importance of various parts of your body as seen by your brain. as a result, they take up a lot of brain space. although the cortical homunculus is a curiosity, penfield's work in mapping the brain's relationship to the body was invaluable.

answer; /// i believe that the correct answer is ( monophasic ); ethinyl estradiol- ethynodiol diacetate is a monophasic oral contraceptive agent; ///

i believe the answer is a or 1