1:1-5 and 1-5:1 ) and control heterokaryons containing one normal and 1-5 r- or s-xp nuclei show that if cell fusion and incubation is conducted in medium preventing protein synthesis , the rxp cells do not complement the s-xp partner at all and , conversely , that the latter is not as effective as normal cells at complementing the rxp partner .
C1520168
xp
C0007634
normal cells