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And a more recent similar spin off: https://www.youtube.com/watch?v=CWGWO2thgqw

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+2 1. Thanny commented 70 days ago

I always hate when I hear "twisted ladder" to describe DNA. That's not what DNA looks like. It's a double helix.

If you take a ladder and make it do a corkscrew pattern, with both sides remaining parallel, then you have a double helix, and the shape of DNA molecules.
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+3 2. Judge-Jake commented 70 days ago

Not sure when this video was made I'm guessing the 1960s or 70's, very well done.
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+1 3. nomaddaf commented 70 days ago

#1 You do understand you just said that you just said the same thing right? They said twisted and you said corkscrew. There is literally zero difference.
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+1 4. thundersnow commented 68 days ago

#2 seventies
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0 5. Judge-Jake commented 67 days ago

#5 Thanks Thunders. <3
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0 6. thundersnow commented 66 days ago

#5 Anytime, dear JJ <3
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0 7. Natan_el_Tigre commented 61 days ago

#2 I remember seeing this at a science center when I was a kid, probably in the early eighties. <3
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0 8. Thanny commented 58 days ago

#3 I understand no such thing, because they aren't the same at all.

A double helix does not look like a twisted ladder.

Twisted ladder, which is wrong:

https://cdn.theatlantic.com/static/mt/assets/science/shutterstock_34693498%20copy.jpg

Double helix, which is right:

https://ghr.nlm.nih.gov/primer/illustrations/dnastructure.jpg