There is one position in the signature sequence that can be occupied by any amino acid, although one amino acid appears much more often than any other. What is this variable position

It could possibly be beneficial if the experiment is successful.

The answer is the third option extremely gradual

This question is rather vague, but i will try and answers it as best i can.start by being polite, then complement on the attributes that you like about that person. be friendly to her friends. don't be mean to anybody she knows, even if you really don't like them. be yourself, don't try to impress, just be yourself and hope that she likes you.

The correct answer would be c