1) Does a positive phenolphthalein (Kastle Meyer) test prove
that a stain is caused by human blood? why or why not?
2)Does a positive phenolphthalein (Kastle Meyer) test prove that
a stain is caused by blood? why or why not?
3)Given the antigen(s) found on the red blood cells, give the
corresponding blood antibody and ABO blood type