this dude is so damn amazing. His courses are free PLUS he hasn't any ads in his videos. Much Respect for this guy!
@mello-by Жыл бұрын
Khan academy is a non profit that you can donate to
@haiyun325110 ай бұрын
Lol mines tc has all her vids in yt monetized 😂 doesn't even show up to class, just ask us to watch 15-18 vids per week
@sophies85736 жыл бұрын
This video is supposed to be for high school students and I'm a med student learning the exact same material 😂
@leandro62856 жыл бұрын
Same haha
@adibsiddiki74096 жыл бұрын
Sophie Van der Meer Well done on getting in, both of you. I'm hoping to.
@muaazbutt93426 жыл бұрын
And i thought i was alone xD
@RS6y66 жыл бұрын
I'm a med student too and I wish that this would be enough for the molecular cellbiology exam but it's not even close :'( Great video btw
@cpard2d26 жыл бұрын
I´m in a masters program and we´re learning this too. We go a bit deeper with the promoter sequences, transcription factors and the different polymerases but overall, it´s the same XD.
@sleepyduck8 жыл бұрын
the fact that you can digest all categories of subjects and then teach is mind boggling!
@ToksNation8 жыл бұрын
I know right
@itsamemarioanne4 жыл бұрын
YYYEEESSS! Sal is a gift for all of us x
@jeromeyklein88384 жыл бұрын
Maybe he just reads from a script?
@Luka11804 жыл бұрын
@@jeromeyklein8838 Well, he did get a Bachelor of Science from MIT...
@notwork20874 жыл бұрын
@@jeromeyklein8838 GFY
@unclelelax83415 жыл бұрын
10 mins lecture > 5 hours lecture
@aplus10809 ай бұрын
Naw, TikTok brain.
@kyloxd27006 жыл бұрын
Anyone else feel the passion in his voice when he talks about these said topics?
@Devilsfannumber306 жыл бұрын
if anyone wanted to know: spliceosomes are what cut out sections from the RNA strand to remove the introns and leave the exons
@schmidtythekidd3 жыл бұрын
Nerd
@demaa.93643 жыл бұрын
thank you i needed it for my vocab !!
@KanekiKen-vm7zq3 жыл бұрын
@@schmidtythekidd i dont think he is a nerd tho, look at his pfp
@akosuafrimpong44653 жыл бұрын
@@KanekiKen-vm7zq your comment 😂😂
@nancygutierrez48564 жыл бұрын
I have no idea how you taught me something I've been studying for two weeks in 10 minutes and I understood perfectly. I wish you were my professor! Keep it up for the pre-med students please!!!
@janetchiang56588 жыл бұрын
it's so weird how you always upload topics about exactly what i'm learning in class!
@Chef102455 жыл бұрын
advanced biology/ chemistry topics don't change often so it would make sense
@saniwada5 жыл бұрын
The AP bio and AP chem cuirculum dont really change or varry much school to school
@kennarajora65323 жыл бұрын
it makes sense he would change his upload topic schedule to coincide with what kids are learning in class.
@smol_chilli_pepper3 жыл бұрын
I never imagined that one day Khan Academy videos would become so nostalgic to me
@rubyyxlc39366 жыл бұрын
I wish I would have found this while I was in microbiology, You explained in ten minutes what I couldn't even get from tutoring.
@shinysunglasses36176 жыл бұрын
This is amazing! I found it hard to understand in class because of how shallow it was, but with more details it makes perfect sense! Thanks a lot.
@yankeyaya16732 жыл бұрын
same, this video is very clear o.O
@Testimonyofabutterfly3 жыл бұрын
this was super helpful for learning this process! I am in awe of the creator God and his ability to make such a complex and beautiful process within such a small structure!!! Praise Jesus
@toddsecor2886 жыл бұрын
This person has helped me better understand chemistry, trigonometry, calculus, and now biology. He is truly amazing. He should be the dean of MIT.
@sarahfalcone87165 жыл бұрын
This helped me a lot to understand the processes in the different cells. Thank you a lot!
@djennings-DDS6 жыл бұрын
Great video - thank you. I liked the very clear explanation of Ribosomal RNA (that it doesn't need anything else to code, compared to the DNA where it needs Helicase, RNA Primers, Ligase, etc.) I also really enjoyed learning about the difference between the mRNA in prokaryotes vs. Eukaryotes. It's interesing that the Introns do not have a specific purpose, so the mRNA, is made up of what's left over after the splicing takes place (exons) of that "pre- mRNA". Again - I greatly enjoyed this video, thank you!
@aplus10809 ай бұрын
There is no dead weight in nature. I'm curious to see the mystery of introns resolved.
@djennings-DDS9 ай бұрын
@@aplus1080 I’ve pretty much forgotten everything about RNA and introns
@astrovation3281 Жыл бұрын
I like how you don't just pass on the material but also pass on the passion
@cutieinahat42678 жыл бұрын
thanks for my marks khan-academy!
@cristianalima66235 жыл бұрын
I wish everything good for you, you just saved my exam! Thank you!
@deathhog4409 Жыл бұрын
6 years and this still save lives...
@anuradhawijethunga58802 жыл бұрын
This was really helpful for my last minute exam preparations ❤️❤️❤️ If it wasn't for youtube, I would've failed my uni exams.
@angiemihalas23193 жыл бұрын
5:55-6:27 nothing you need to take notes on, but the reminder we all need! biology is amazing.
@rafiamushal835 жыл бұрын
This was so helpful for my university genetics class! thank you!
@JorgeRamos-xw6dy4 жыл бұрын
Wonderful! I'm getting my KZbin degree. I navigate from MIT to Harvard to UC Berkeley etc...all for free lol. I wish this were around when I went to school. Thank you for the wonderful videos.
@marygonzalez8648 жыл бұрын
Does anyone know if there is a way to get a print out of the diagrams and pictures he shows. The way he explains all the processes with those visuals really help!
@seabass3244 жыл бұрын
you can always screenshot and crop into word doc instantly :)
@silvanaban57976 жыл бұрын
Thank you for this. This was extremely helpful!
@spxtfxre15 жыл бұрын
Mr. Khan, you seem like an awesome human being to me. I really wish you could coach me in person. I got only 16 days left before my 12th grade final examinations start. Thanks a lot for doing what you're doing. That's really great work. Keep it up. I will donate when I am able to. ❤❤
@Malak.A.Mudallah Жыл бұрын
Me too as a fresh 12th grade student
@dotted_stains27927 ай бұрын
His cousins actually prefer him in videos than him in person, maybe it's the system that allows him to be as good as a teacher he is today :)
@alltup83473 жыл бұрын
I’m literally watching this before my exam please wish me luck
@Star-pj8fz3 жыл бұрын
what did you get?
@alltup83473 жыл бұрын
@@Star-pj8fz 34/50
@Star-pj8fz3 жыл бұрын
I got a 75%. I hate biology 😂
@sherm71073 жыл бұрын
Gene editing eugenics, using aborted baby cells and tissues also, GMO nanotech particles
@saiamitchaddha55254 жыл бұрын
God Is Great, May God Bless them all and you all and your families
@princetandukar92903 жыл бұрын
Khan academy: You should be in AWE with this!!! *Me: YAWNs Biology: *am I a joke to you?
@TomDavis958 жыл бұрын
Important to note that in eukaryotes the pre-mRNA processing occurs co-transcriptionally and not post-transcriptionally!
@bonedoggle4 жыл бұрын
i learn more from sal than i do from my own professors
@sarahholland59804 жыл бұрын
a whole lecture made ultra-clear in 10 minutes. thank you!!!
@mansiraja26236 жыл бұрын
Givee meee your handwriting 😻😻😻 and you actually have the capability of pinnng whatever you teach into my head!!
@tonyi46774 жыл бұрын
Thank you so much for the clear and "easy to understand" explanation.
@fmsenga7 жыл бұрын
Thank you for this tutorial...harpers is quite tedious to understand...this helps a lot
@김소혜-s5e5 жыл бұрын
I'm Korean university student. This explainment helps for Test. Thanks.
@FreeWaves9 Жыл бұрын
This man is single-handedly carrying the US education system
@yourfuturedocburenbeiya4 жыл бұрын
Thank you so much for this video!! You're the best! Your handwriting is nice and the way you explain it is so much more interesting. I always have more appreciation of what we're learning because of the way you teach it in these KA Videos.
@m.a.shahid49277 жыл бұрын
RIP for Medved's exam, but this video made it much easier. Thanks and keep it up bro!
@kuensedn15295 жыл бұрын
2 yrs later i watch this once again! :))
@dhivyaseker33785 жыл бұрын
This video is really helpful The way he teach is very understandable Thank you so much. It helped me a lot.
@Ash-zb7bu5 жыл бұрын
thank you, khan academy, once again for saving my biology grade
@owenbartrop89633 жыл бұрын
Trust Khan Academy to provide more information than my government :D Thank you Sal, you're a real legend.
@memomemo76434 жыл бұрын
Thank you soo much that was an 1.30 h lecture of nonsense that u just turned into the most interesting and understandable information in 10.24 mins
@chelsieb.5933 жыл бұрын
i don't know how many times throughout my biology career, I've had to rewatch this video
@tulliachampney47132 жыл бұрын
love that my professor for my 400 level biochem class assigned us to watch this video
@tomkrys33314 жыл бұрын
You should always remember that Biology is amazing. Yeah man it really is!!
@mdijkman93864 жыл бұрын
Since this video has been uploaded one thing has been discovered. In termination, right after the hairpin is formed a bunch of Adenine's are present in the DNA, this makes it so that A lot Uracil's are transcribed. The bond between A en U (also T) is quite weak, with only 2 hydrogen bonds formed. So the pre-mRNA falls off.
@pentachronic6 жыл бұрын
This is absolutely fascinating. Thanks for the great videos.
@fersiva17 жыл бұрын
Hi Mr Khan, thanks for the explanantion but can you explain on the process on how the cap and tail is added and their purpose in conversion of pre mRNA to mRNA?
@mrburns8057 жыл бұрын
This dude seriously has a video for everything
@benward50414 жыл бұрын
sal always makes me feel safe lol
@ilove09182 жыл бұрын
you should upload more of DNA/RNA in depth processes!!
@deboisdead Жыл бұрын
honestly as a hon bio student you save my life thank you
@adrienne2838 Жыл бұрын
i rememver watching this in high school and now im in my gap years. and im. still watching this
@clintluna68845 жыл бұрын
Love the enthusiasm!! Awesome video! The Audio kept cutting out about every minute or so on my end, not sure if it's just me or anyone else??
@sherlonsinclair11567 жыл бұрын
Your videos are amazing. Cannot possibly get any simpler. Thank you. You're a life saver.
@allysonperez524111 ай бұрын
I love how you get excited about the material. Makes us students much more engaged and excited too. Endless thank yous Sal!!
@omarsalama13752 жыл бұрын
Allah who made this incredible staff..
@shotgunner07gaming3 жыл бұрын
This recap is just what i needed!
@tutik2349 ай бұрын
This video is very well done. Thank you I understood everything. I'm 14 and you explained it very well. ❤
@hannahuynh14874 жыл бұрын
the fact that im a 9th grader having a test on protein synthesis and dna rep when med school students are here ;(
@michael_alan3 жыл бұрын
You are very clear in your teaching Many thanks!
@averagestudent5222 Жыл бұрын
With all these videos I don't think its necessary to go to school anymore
@why62076 жыл бұрын
You are the best teacher I have ever seen
@evanli97577 жыл бұрын
did you pre-draw all those shapes of ribosomes, DNA, and others?!?!?!?! that's insane
@thelastcipher91358 жыл бұрын
what playlist is this? thanks :)
@lawsonrodeehk10607 жыл бұрын
This guy is awesome...
@trensza7 жыл бұрын
Nice. This makes so much sense now
@sciencenerd7639 Жыл бұрын
turns out helicases are involved in transcription after all still a great video, keep up the good work Khan Academy, thanks!
@alandriaglenn31452 жыл бұрын
I am so grateful for your videos! Thank you!
@Goldielopss8 жыл бұрын
I needed this exact video a year ago :'C
@agnestee42614 жыл бұрын
Thank you! That was super helpful and easy to digest!
@ElloBoppit3 жыл бұрын
It is mentioned in this video that the RNA Polymerase is more than enough to open the DNA and begin transcription. However, in my Kaplan biochem 2020 MCAT prep booklet it says that RNA Pol II is preceded by helicases & topoisomerases to address unwinding/supercoiling. So both work?
@alialsaeed33226 жыл бұрын
Thanks.what is the primary,secondary,tertiary and quaternary structure of DNA??and how hydrogen bonds contributed in stability of DNA?l want answers please
@brettisaac462 жыл бұрын
So what's keep the Exons from floating away from each other once the introns are spliced?
@momin6652 жыл бұрын
Amazing sir and made my day God bless you
@demetrakaskiri69876 жыл бұрын
thanks for helping on my Biology test!
@loisbeard85363 жыл бұрын
Hi, thank you for your hard work, it’s an amazing lesson! But I don’t quite understand the way mRNA develops towards 3’ instead 5’? Thanks
@c4sh3w Жыл бұрын
Could you point out what MCAT stands for and what role it plays in this process?
@عليالشنطه-ن5ي Жыл бұрын
Thanks for the great explanation 🌹
@fatemakhan2161 Жыл бұрын
omg amazing Thanks from very bottom of my heart
@ruththomas5667 Жыл бұрын
SUCH AN AMAZING VIDEO THANK YOU SO MUCH!!!!!
@tamimurrahman64647 жыл бұрын
thank you very much.it helped me a lot for my exam today
@claire76437 жыл бұрын
Sal Khan came to my school a few years ago... it was cool. Except I'm dumb and can't understand anything.
@fasihakhan53197 жыл бұрын
you make mt life easy, stay blessed
@themoralshow9023 жыл бұрын
Thanks ❤️ From 🇱🇰
@jessicab61312 жыл бұрын
wish you were my instructor... i love your facination for this.
@ahmedabdulrhman13586 жыл бұрын
realllllllllllllllllllllllllllllllllllllllllly huge thanks, you are great and amazing teacher
@jideo47017 жыл бұрын
Thank you so much! I'm gonna shed a tear.
@atheeri72867 жыл бұрын
5:28 The RNA being transcripted has the same sequence as the coding strand (with the Uracil replacing Thymine), BUT they don't have "the same information". If the coding strand were being transcribed here, it'll give a different RNA sequence, therefore a different order of codons, which eventually gives different amino acids (different protein). So yeah, not the same information =)
@leifthurmond9864 Жыл бұрын
You’re amazing thank you teaching us all😁
@ritikasrivastava38402 жыл бұрын
thankyou soo much for the best explanation
@FamineNH5 жыл бұрын
Gona kill my bio final. Thanks for the videos bro they've helped me so much. Very confident I'm going to get the A I need in this course!
@charlotte-xd4mq2 жыл бұрын
THIS is what's helping me to keep up with my bio class 😂
@111943582 жыл бұрын
''someone like me is going to give you these nice clean narrative'' is funny haha
@Jojo-kl6tx5 жыл бұрын
Awesome video, in general awesome videos. I study Applied Biology and it's great to have your videos and from there read further into the subject. Thanks a lot! (also, this is great for getting an overview since I have no idea how to get all the biology stuff in my head I need to know in three days)