S strain bacteria when injected mice die R-mice live heat killed S - mice live, heat killed S + live R - mice die, recovered living S from dead mice, R Strain bacteria had been transformed to S strain by the genetic material of heat killed S Strain.
S strain bacteria when injected mice die R-mice live heat killed S - mice live, heat killed S + live R - mice die, recovered living S from dead mice, R Strain bacteria had been transformed to S strain by the genetic material of heat killed S Strain.