Examlex
What economic weapon did Vladimir Putin use against Ukraine in 2004?
Sugar-Phosphate Bonds
Covalent bonds that connect sugar and phosphate molecules, forming the backbone of nucleic acid structures like DNA and RNA.
Okazaki Fragments
Short sequences of DNA nucleotides synthesized discontinuously and later linked together to form the lagging strand during DNA replication.
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.
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