Our Instruction Manual for Existing: DNA Structure & Replication: Crash Course Biology #33

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Published 2024-03-05
Your DNA contains all the instructions your body needs to function. In this episode of Crash Course Biology, we’ll figure out what this giant instruction manual looks like and how this three-billion-letter code gets copied into your trillions of cells through DNA replication.

Introduction: DNA & The Human Genome 00:00
The Structure of DNA 1:36
Chromosomes 3:51
DNA Replication 4:16
How DNA Replication Works 6:06
Mutations 7:51
The Okazakis 10:04
Review & Credits 11:23

This series was produced in collaboration with HHMI BioInteractive, committed to empowering educators and inspiring students with engaging, accessible, and quality classroom resources. Visit BioInteractive.org/CrashCourse for more information.

Check out our Biology playlist here:    • Biology  

Watch this series in Spanish on our Crash Course en Español channel here:    • Crash Course Biología  

Sources: docs.google.com/document/d/1GLDtAXE6ekg4Chk2qN3TYb…

All Comments (21)
  • @maximummax29
    I have been watching Dr. Sammy religiously lately to remind my self of basic concepts I need for my exams. Your a life saver man
  • I have a cellular bio test tomorrow and was still confused on DNA replication, but you guys came in clutch!!!!
  • Every time I have to remember which pairs go together, I just remember the round letters go together (C and G) and the pointy letters go together (A and T).
  • @docjoe86
    I often say DNA is like an expensive cookbook in the reference section of a library (the nucleus) and mRNA is like a photocopy you make of the pages you need. This analogy would have been much more relevant 20-30 years ago!
  • @WCOBDisorder
    I literally just finished making an EdPuzzle for the older Crash Course on this topic!
  • @MrMetro-mt5qv
    So now we see why Wolverine developed bone claws and a healing factor.
  • @elius_robinc
    Lol just im learning English and now I step by step understanding that I need to learn a lot and a lot by your videos
  • @kayliegrace2002
    I just graduated from high school a few months ago and I still watch this sometimes and the funny thing is science was one of my least favorite subjects 😄
  • Wow a lot of this I haven't read about in over a decade! This is only the second video I've watched so far but awesome videos!
  • Its always feels amazing to be the first in a Chanel that you really like 😂❤
  • I think at 3:30 we can also make another mnemonic like remember it as G3 Cat2 (or just G Cat), G has 3 bonds with C and A has 2 bonds with T. Hope it helps.