Cysteine proteases work on the similar principle as shown by serine proteases. Cysteine proteases use a thiol group, which is activated by its proximity to a histidine
residue. Therefore, these enzymes have a catalytic diad, not triad as in serine proteases. Propose a mechanism for cysteine protease action on peptide substrate through formation of the acyl-enzyme intermediate (Stop at this point).​

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Identify a specific example for each type of technology

In an investigation that uses the scientific method, which step immediately follows making a hypothesis? o summarizing the results o asking a question o making observations designing an experiment mark this and retum save and exit next submit