HELP PLS! XX= Female XY=Male. You and your spouse are expecting your first child. What is the probablility for your child to be a male? why?

What would the probablility for your second child to be female? Why?

Do the following statements describe actin, myosin, both of the proteins or neither of the proteins? (a) contains a binding site for calcium (b) found in the i band (c) exists in a globular (g) form and a filamentous (f) form (d) contains a binding site for atp (e) is a component of the thin filament (f) is a component of the thick filament