The Meselson-Stahl experiment provided the first experimental evidence that: A. Newly synthesized DNA in E. coli has different n
ucleotide sequence than the parent DNA. B. DNA synthesis in E. coli proceeds by a conservative mechanism. C. DNA polymerase is required for DNA synthesis. D. DNA synthesis in E. coli proceeds by a non-conservative mechanism. E. DNA synthesis requires dATP, dCTP, dGTP, and dTTP. F. DNA synthesis in E. coli proceeds by a semi-conservative mechanism.
In 2008 we started to recycle more often and produced less waste. This is mainly due to the fact that global warming was starting to spread to the public.
