This protocol describes a single-step technique for the purification of RNA. Cells are homogenized in guanidinium thiocyanate and the RNA is purified from the lysate by extraction with ...

England beat Australia by four wickets in two-day Test at Melbourne to avoid Ashes whitewash; Jacob Bethell top-scores in England second innings; tourists 3-1 down ahead of final Test in Sydney from ...

STD testing can be quick, painless, and sometimes even free. STD testing isn’t usually included in regular medical exams — you have to ask for it. For more accurate abortion options, please enter your ...

You can get tested for STDs at your local Planned Parenthood health center, a doctor’s office, and health clinics. You may be able to get free STD testing. For more accurate abortion options, please ...