DNA Structure and Replication: Crash Course Biology #10

Hank introduces us to that wondrous molecule deoxyribonucleic acid - also known as DNA - and explains how it replicates itself in our cells.

References:

Table of Contents:
1) Nucleic Acids 1:30
2) DNA
-A) Polymers 1:53
-B) Three Ingredients 2:12
-C) Base Pairs 3:45
-D) Base Sequences 4:13
3) Pop Quiz 5:07
4) RNA 5:36
-A) Three Differences from DNA 5:43
5) Biolography 6:16
6) Replication 8:49
-A) Helicase and Unzipping 9:22
-B) Leading Strand 9:38
-C) DNA Polymerase 10:08
-D) RNA Primase 10:24
-E) Lagging Strand 10:46
-F) Okazaki Fragments 11:07
-F) DNA Ligase 11:47

Want to find Crash Course elsewhere on the internet?

[pedrosmith]

My earphones get tangled all the time, but miles and miles of DNA don't. Mind blowing.

[her]

11 years later, the video still better than a two hour lecture

[mattalex]

This dude is getting me through college one video at a time.

[FishoeShoe_da_great]

"why is a teenage boy similar to helicase?
they both want to unzip your genes (grins)"
I'm speechless

[rheasharma]

Hank: "Hey you wanna make one?" Me: I'm 12

[tankgunner]

its crazy how a youtube channel that i get for free is a better teacher than the teacher i paid hundreds of dollars for. goddamn the college life.

[YoyoBear]

Thank you so much for covering Rosalind Franklin, some of my previous instructors only briefly mention her and they rarely discuss her major contributions to the discovery of the DNA structure.

[JulioFromBoston]

Editing team: "Hank please hold up a shoelace and be amazed by it"

[ExplaurenwithLauren]

Good Luck on your test/exam/final/quiz tommorow that we both know you are just now studying for...





éxpöšêď ;)

[katiesingsthings]

Anyone else cramming the day before the exam?

[surajbhat]

this 12 minute video basically goes over eveything we've learnt in pre-ap bio's dna unit, which took 2 weeks for us. Thank you Hank

[christinemilling]

I started teaching biology in 1993 and I KNOW my kids (now middle aged) KNOW it was Rosalind Franklin who did the work. Hank, thank you. I left teaching, but am thinking about getting back into the classroom. Using your videos to study up for the test to get recertified. :)

[alannar.]

Trying not to fail my bio final. This is so helpful, and I want to thank the Green brothers for starting the channel, and the whole CC team for making it a reality. You guys are kind of the best.

[mariakal]

Usually when I watch videos to catch up on material idk the night before an exam I watch it in 1.5 speed but these crash course videos are the only ones I actually have to watch in like .5 speed omg

[seamusmcc]

During the diagram from 3:00 to 3:40 all of the carbons that you circle and label are 5' carbons. The 3' carbon is the carbon that the phosphate group bonds to on the next nucleotide. So on the left stand the 3' carbon of the bottom sugar would be the very bottom left carbon with the two atoms (hydroxyl group) hanging off of it, and the corresponding carbon in each subsequent sugar.

[riyasingh]

HANK: Hey you wanna make one
Subtitles says :oh dear god
*Squeak**squeak*

[matthewvillalba-mutis]

When he said "Pop Quiz", my heart jumped.

Sadly, I'm used to my science teacher saying that.

[alhassan]

I wish he is my anatomy teacher, I would get A so easily. my anatomy final is tomorrow and your videos help me in not wanting to read half a textbook

[minjeekim]

When Hank said "POP QUIZ!" my heart started racing so fast.

[laurenwallace]

I don't remember Crash Course being this complicated when I was in 9th grade biology, though I guess I should be thankful that 6 years later it is still helpful for my college level genetics class.