Examlex
Describe the general process of how the interstellar medium can create a star.
Heavy Nitrogen (15N)
A stable isotope of nitrogen, used in scientific studies to trace nitrogen pathways and cycles in the environment or organisms.
Meselson and Stahl
Scientists who conducted a landmark experiment in 1958 demonstrating that DNA replication is semiconservative, where each of the original strands serves as a template for a new strand.
Semiconservatively
A method of DNA replication where each of the two parental strands serve as templates for new strands, leading to two daughter molecules each having one old and one new strand of DNA.
Meselson and Stahl
This refers to the scientists Matthew Meselson and Franklin Stahl who, in 1958, conducted an experiment providing evidence supporting the semi-conservative model of DNA replication.
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