Are the pick lists for 3 possible values really necessary? Simplify, then you're done.

You could do this...

SELECT bioID

, FirstName

, LastName

, Sex

, Status

FROM Bio INNER JOIN Sex ON Bio.SexID=Sex.SexID

INNER JOIN [Status]

ON Bio.StatusID=Status.StatusID

WHERE FirstName = @FirstName

AND LastName = @LastName

But picklists for 3 possible values are kind of overkill, I think. You can just as easily use a CHECK constraint, and a single character (M,D,S...) M/F