Leading and lagging strands in DNA replication | MCAT | Khan Academy

Roles of DNA polymerase, primase, ligase, helicase and topoisomerase in DNA replication. An explanation of leading and lagging strands.

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[rebelScience]

Thanks for making this content free and accessible. This is invaluable.

[moniquecattron]

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[gabistewart]

Made six years ago and still using this as a resource for college for an overview. I love that this is free and covers everything. Thanks so much

[enndruu]

is it just me or is this video extremely quiet

[sandisonkosi]

Additiona info: The reason we cant add nucleotides on the 5 primer is because it lacks and OH group that DNA polymerase hook it self on. Anyway great vide.

[yurighalachyan]

Really helpful, couldn't understand from the book, much better seeing the process

[MuhammadAbdullah-iyhc]

sometimes in particular stages of life like this, you're not wasting your time, but jeopardizing your future.
all you have to do is just frickin sit and study

[amberembers]

Such a great diagram for simplifying what my Genetic lecturer over-complicated. Thank you!

[gordonledwidge]

makes more sense than class or the book. thanks for putting the time in
karen

[annverawaye]

Thank god. This was really helpful. My textbook makes it sound like everything does the same thing I wish that there was a little more information on the polymerases, but it still pretty good and understandable. So thank you again.

[lifetheuniverse]

2:40 Why are there so many things in science that are backwards

- like naming conventions 1 prime to 5 prime but physical reaction operates 5 prime to 3 prime
- OILRIG oxidation is loss of electrons, reduction is GAIN ...
- Fictitious movements of positive charge... electrons move, flow from anode to cathode
and more that i can't think of at the moment
- Fictitious forces like centrifugal force
- ... more that I cannot think of at the moment

[DaCoolDawgs]

I watch all these videos at 1.5x speed and I still feel like he's talking in slow motion.

[hoorain]

Thank You So Much! You don't know how many people you are helping :)

[Michaela-Rae]

thank you so much for doing this. You have no idea how much relief this gives me being able to find EXACTLY what I'm needing to study this easily. Usually I'm looking all over for like an hour and I don't even get exactly what I need LOL

[ApekshaGA]

Took my a while but I finally get the 5' to 3' stuff!

[helendang]

Textbook and my teacher's PowerPoint plus resources confused me. BUT THIS SAVED MY LIFE!

[lukeholyland]

Cramming for an assignment. I love this channel.

[alexandriawilson]

Only video about polymerase that has made any sense to me. Thank you!

[carringtonsaddler]

I needed this explanation to understand the basic concepts of DNA replication and the enzyme players. Thank you so much!

[skyeciccarelli]

Really helpful!!! Much easier to understand from this than the book.