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  4. Meselson Stahl experiment on semi- conservative replication demonstrates that

Q. Meselson Stahl experiment on semi- conservative replication demonstrates that

 2418  189 Delhi UMET/DPMTDelhi UMET/DPMT 2008Molecular Basis of Inheritance Report Error

Solution:

Mathew Meselson and Franklin Stahl (1957) proved that DNA replication semiconservative. They obtained DNA strands, which were 50% radioactive and 50% non-radioactive. When replicated the radioactively labeled DNA into non radioactive DNA medium. Semiconservative model of DNA replication states that parental DNA separates into two strands and each strands acts as a template for synthesis of new strand. Thus, a daughter DNA will have one old and one new strand.