Recent content by Username55

In a male, gender gene is expressed as XY, so people know how a male to be male by its Y, but in a female, the gene is XX, and I am wondering which one of XX is characterized for female... If the left one is, then what is the functionality of the right one ?

Both posts above should have answered your question, I think it is mainly due to fitness enhancement. Environment changes are the main cause .

Given a sample blood, what would you do to distinguish different antibodies (MGEAD)? Also, I am curious as to how the H and L chains are formed ? I can't find any clues in my textbook, please help. Thanks