Best Answer: right click on the screen, if xp press properties, if vista, press customize, and go to display properties and fool around, and it will show all the available refresh rates. Right click on your desk top. Then click on advanced settings. eg.
DNA replication is semiconservative because each new double helix contains (1) old and (1) new strand. each mother strand serves as a template for a new strand.The two strands â¦ are complementary, but not identical.
Meselson and Stahl confirmed the DNA replication is semiconservative when they found only hybrid (intermediate density) DNA in bacteria after first growing them in a medium with heavy nitrogen and then switching them to a light nitrogen.