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How COVID-19 Testing Works

How COVID-19 Testing Works

There are three different COVID-19 tests in use today, with several variations of each on the market. What, exactly, do they do? How accurate are they? What can they tell us about this virus? Dr. C goes into the details, concluding that education is the best defense...
Angelic DNA! Wait, what?

Angelic DNA! Wait, what?

There is a mysterious passage in Genesis chapter 6 about the “sons of God” having children with the “daughters of men”. Scholars argue about what this means, and you can find all sorts of views on the subject in the public area. Some say the...
Pandemics vs Entropy

Pandemics vs Entropy

Pandemic viruses are deadly, but over time they should weaken as they pick up mutations. Will this happen with the pandemic coronavirus? We can only hope. But has it ever happen before? Yes, between 1917 and 2009, the human H1N1 virus picked up thousands of mutations...
The octopus is from Mars, and other stories

The octopus is from Mars, and other stories

There are certain things in genetics that are truly shocking. Complexity (in this case, of the octopus genome), hybridization between species that are not in any way similar, ancient genetic connections between the Polynesians and the South Americans, and the...
Twisting Tales with Ancient DNA

Twisting Tales with Ancient DNA

  The fact that ancient DNA exists at all is a minor miracle. And now that we have figured out how to extract it efficiently and sequence it accurately (more or less), we are suddenly able to answer many long-standing historical riddles. Dr C explains how ancient...