CNN.com is featuring a "How it works" animation about genetic testing which gets incorrect nearly every basic fact about biology. It includes the following caption above a picture of a double helix:
The double helix is two exact copies of chromosomes wound together — a strand from each parent.
After these "Basics" (the title of that slide) we move on to the discussion of disease causing variants, where we learn that DNA mutations result in "abnormal pairings" of A and T to C or G and vice versa.
How is it possible that they couldn't find someone with a passing understanding of high school biology to work on this feature? I'm not even asking for an actual biologist to do their research, but believe me when I say that this is easily as egregious as:
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