Emphasizing reading from 3 to 5 and writing from 5 to 3 is not effective the explanation is too stretched it could be effectively explained in half of the time
This is the honestly the only video on DNA Replication that made sense.. you've pretty much included all the important parts without being too fancy.. simple is better!
I just found out that Dave Carlson is battling a brain tumour. I am currently studying for the MCAT and the videos from PremedHQ have been very helpful. Dave is a wonderful instructor. I will be donating to his gofundme as a sign of my utmost appreciation.
Omg he explained it very well!!!! I Have been looking for a good explanation and I swear i was postponing the exam of molecular genetics a lot .Because the Professor asks the mechanism of Dna replication! I'm so glad i found this explanation. I know nobody is stupid but we sometimes need someone to clarify our ideas and help us understand more. THANK YOU A LOT.
I believe what makes a good teacher is ability to tell your students what they don't know and all they need to know about that, not telling them what YOU know!
Thank you Sir. I am not a natural English speaker, that's why I really enjoy your eloquence, the varity of your choice of words. Now all my questions concerning the issue has been answered.
your videos are so clear and you're so good at explaining! - even though I don't need all the information for the exams I'm doing, I keep coming back to your videos when I don't understand something because they are so good! thanks so much
Minor correction: First: A-proteins separates the strands initially at AT-rich areas throughout the strand (so replication starts at multiple places simultaneously). (Not a critique, but you forgot them). Second step: SSBs keep the strands from annealing, like you said, while simultaneously helicase unwinds the DNA to further separate the strands. After that Topoisomerase is also important, since it reduce the tension, caused by helicase and thereby prevents supercoiling.
Hello! I was trying to find some info on A-proteins but could't find any, can you please share a link where it's written about them? i would appreciate it, thank you!
The origin of replication depends on whether the cell is eukaryotic or prokaryotic. In Prokaryotes, the DNA is circular and there is only one origin of replication. What you refer to as A-proteins are the initiator proteins that bind to the origin of replication. In E.coli, the initiator proteins are called DnaA & DnaB. In eukaryotic cells,there are multiple origins of replication on the linear DNA molecule. The initiator protein in eukaryotes is called the origin recognition complex. Source: www.ncbi.nlm.nih.gov/pmc/articles/PMC3783049/
My online teachers never ever explain things like they never told me that replication always starts at 3' and moves towards 5' which is one of the things that confused me so much. They never really explained what a primer was they just told us that it starts the process of replication. Like what?!!!! Teachers like you have made my life so much less complicated
just wanted to stop by and say that your videos here have helped me massively in my understanding of a variety of mcat subjects. your calm, patient manner of explanation is irreplaceable my friend!
I was really confused after my professor went over this in class, but after watching this video it really gave me a better understanding of how DNA replication works!!!! THANK YOU SO MUCH!
@@bakarolachika187 I do know that... what im saying is do they do this once? and then they dont have to read it again becouse dna gets saved up onto the system or they have to do it before every replication time? That was my question
after personal trainer, I took up sport science university and this is the ONLY VIDEO (or almost only) that explains the reason why Okazaki fragments occour!! not only DESCRIBE but also EXPLAIN (the story of the new primers) very well done
I can't even explain how much this video helped me, I have to give a presentation in two days and no other videos/sources led me to understand the whole Primer in 3' and 5' direction thing. Thank you!
Sir, I just want to thank you so much for explaining this in such a clear and simple way. I thought I was never going to understand replication. Thank you so much!!
Heartily thank you sir. I had come here because i did not able to take clear concept of my lecture and mam was asked questions but i was not able to answering to mam. However mam challenged me next lecture. Through this video i will explain more than mam could expect from me.
In fact, I've watched thousands of videos on UA-cam, and this is the coolest and simplest video I've ever found. I really thank you very much it will help me in the final !!!!!
OMG!!!! His explanation is superb. I don't think I could have understood it better from anyone else. I feel confident enough to teach this to students someday (I'm a teacher In training☺). Thanks a lot
Thank you sooo much!!! I have exam in 2 days and I've been struggling with this lesson.... now it's completely clear..... and now I'm pretty sure imma Rock it😅
Enjoyed the video with good understanding of the process as the professor is soft, clean and clear speaker and covered events of DNA replication in a simplest possible way.
I'm a complete layperson, I have no medical education or training whatsoever. I understood this video, at least at the logical level of what each enzyme does, etc. Thank you for a great video!! I started watching videos about SARS-Cov-2 in an attempt to understand more about it, and now I've fallen down a rabbit hole and I think I want to learn a lot more about molecular biology now. I want to learn way, way more about the processes involving DNA, RNA, cells in general - but more than that I'd love to understand how, physically these things work. Ultimately all of this boils down to chemical reactions, right? That's what I'd love to understand. Molecule X bonds with molecule Y due to its shape, structure etc, and BOOM - now you have what's essentially code being executed and - life. Maybe it's my computing science background which is causing me to be so fascinated by this world which until a week or two ago, I knew zilch about (and still do compared to someone who's actually studied it, of course). My mind is kind of blown and I can see me continuing to fall down this rabbit hole. Maybe I'll start looking for actual constructed courses, but for now, videos like this are a great place to start. Thanks again for such a clear, well structured and explained video!
very clear explanation of the okazaki fragments and how they occur because of the discontinuous replication on the lagging strand. This part is usually missed by students.
Clear, concise, and makes perfect sense. I love that you explained popular words that we commonly hear when discussing DNA replication, but may not have fully understood well. We have all heard the term leading strand, lagging strand, semi conservative, etc. but explaining exactly what they mean in conjunction with the full video explanation really increased my understanding.This attention to detail and your clear understanding of the topic really this video apart from all others.
I didn't understand the thing with the leading- and lagging strand. But now I do(At least much better) than i did before, because of this video. Thank you!!
I thought I understood DNA replication but after watching this video, there's so much well-explained info... I have to figure out how to organize it. By far the best channel and video ~
I've always escaped from this topic but finally had to come down cz of my exams ,my biology teacher doesn't develops good communication,also like she just wanna escape off delivering lecture,found that video useful , definitely gonna share, it's really calming to watch such a cute person explaining so nicely,he just soo looks like Clark kent❤️❤️
I just found out that Dave (the person in these videos) was diagnosed with a brain tumor 2 years ago. He was actually a UCSD Med student. It was on the news: www.nbcsandiego.com/news/local/UCSD-Medical-Student-Aspiring-Neurologist-Not-Letting-Brain-Tumor-Stop-Him-434170093.html I checked if there was a way to help out, and found his GoFundMe. It's still open. www.gofundme.com/f/dave-tumor-fight This is his most popular video so I thought I would post this here. He's amazing!
Oh goodness, that is so sad! He is honestly an amazing person and teacher. His videos save my life in school and also inform me so much that I actually listen to them for fun. Thank you so much for posting this.
oh my gosh, I just watched the link you shared. What an incredible story.. I hope he is still doing good and able to carry out his dreams. What a cool guy.
This is theeeee first video out of about 10 that I completely understand !! You explained this sssssoooo welll!!! omgeee im so glad I found this channel!!
Ohhh Allah 🥺 I don't how to say thanks to u may Allah bless you for clearing my this concept I literally waste my whole day in clearing this topic I watched lots of videos but I didn't get anything from a single video thank you so much for clearing all steps I'm having exam the day after tomorrow and your video really helped me a lot 🥺 I'm doing graduation now that I got clear this topic I didn't even get this topic in 12
I am Soo grateful for this! Been thinking a lot about this topic and always encountered problems when studing the lagging strand. Thank You for explaining it soo simply and understandably! The enzyme reads the strand from 3' to 5' but the new one is made from 5' to 3' carbon + since the helicase continues to open up the DNA and the ''lagging'' strand is making DNA in the other direction, it simply needs new primers from time to time to catch up with the replicaton fork!
I have watched so many videos on DNA Replication is this was so helpful!!! its crazy how I can watch 5 videos and not understand and watch yours and totally get it thank you very much!
Thank you so much. This is the best video of DNA replication I have watched so far and the only one which made complete sense. This is a life saver video for me... Thanks!
This is by far the best DNA Replication video I've watched, thank you very much.
Emphasizing reading from 3 to 5 and writing from 5 to 3 is not effective the explanation is too stretched it could be effectively explained in half of the time
I agree it is the best becaue it explains WHY and not only WHAT and all of that in ten minutes
This video literally explained 2 weeks worth of confusion in 17 mins, thank you
hahahahhahha, same here
Haha 😂
This is the honestly the only video on DNA Replication that made sense.. you've pretty much included all the important parts without being too fancy.. simple is better!
Good
Iam from South Waziristan
It's 2021 and you are still saving liveesss. This is by far the best video i have seen.
I just found out that Dave Carlson is battling a brain tumour. I am currently studying for the MCAT and the videos from PremedHQ have been very helpful. Dave is a wonderful instructor. I will be donating to his gofundme as a sign of my utmost appreciation.
Who's Dave Carlson?
@@ownitervi241 The person on this video.
@@rubyrose49 oh, that's sad. Is he doing better?
Oh my goodness. How is he?
you're a lifesaver, I was literally struggling until I found this video , you get straight to the point. Thank you!
This is the simplest, most detailed, yet easiest to understand video I’ve watched about DNA Replication. Thank you so much!
This man right here, needs an award for this. Never seen any replication video this clear. Outstanding!!!
Thanks, so much doctor I’ve studied for almost 2 weeks and didn't understand anything till I saw your Channel really appreciate
Great to hear!
I've watched many DNA replication videos, this is by far the most clear, specific and professional one. Thank you!
Omg he explained it very well!!!!
I Have been looking for a good explanation and I swear i was postponing the exam of molecular genetics a lot
.Because the Professor asks the mechanism of Dna replication!
I'm so glad i found this explanation.
I know nobody is stupid but we sometimes need someone to clarify our ideas and help us understand more.
THANK YOU A LOT.
Watching this before tommorow's exam.
Better to watch one piece
Hats off
You are genius
The best replication video
I believe what makes a good teacher is ability to tell your students what they don't know and all they need to know about that, not telling them what YOU know!
Thank you Sir. I am not a natural English speaker, that's why I really enjoy your eloquence, the varity of your choice of words. Now all my questions concerning the issue has been answered.
Wow, I used to have difficulties with DNA replication. Not until I came across this video, THANK YOU SO MUCH
your videos are so clear and you're so good at explaining! - even though I don't need all the information for the exams I'm doing, I keep coming back to your videos when I don't understand something because they are so good! thanks so much
it took 7 classes to finish this topic in my university, but you closed 7 classes in class. and i am not going to forget this class. thanks teacher.
So well explained
I just watched a MIT lecture on DNA replication and yours is 10x better!
Minor correction: First: A-proteins separates the strands initially at AT-rich areas throughout the strand (so replication starts at multiple places simultaneously). (Not a critique, but you forgot them).
Second step: SSBs keep the strands from annealing, like you said, while simultaneously helicase unwinds the DNA to further separate the strands.
After that Topoisomerase is also important, since it reduce the tension, caused by helicase and thereby prevents supercoiling.
Hello! I was trying to find some info on A-proteins but could't find any, can you please share a link where it's written about them? i would appreciate it, thank you!
whats AT pls?
@@melissaatanga4337 Adenine = Thymine rich regions.
The origin of replication depends on whether the cell is eukaryotic or prokaryotic. In Prokaryotes, the DNA is circular and there is only one origin of replication. What you refer to as A-proteins are the initiator proteins that bind to the origin of replication. In E.coli, the initiator proteins are called DnaA & DnaB. In eukaryotic cells,there are multiple origins of replication on the linear DNA molecule. The initiator protein in eukaryotes is called the origin recognition complex.
Source: www.ncbi.nlm.nih.gov/pmc/articles/PMC3783049/
adinosine and thymine@@melissaatanga4337
My online teachers never ever explain things like they never told me that replication always starts at 3' and moves towards 5' which is one of the things that confused me so much.
They never really explained what a primer was they just told us that it starts the process of replication. Like what?!!!!
Teachers like you have made my life so much less complicated
just wanted to stop by and say that your videos here have helped me massively in my understanding of a variety of mcat subjects. your calm, patient manner of explanation is irreplaceable my friend!
I wasn’t able to understand replication of DNA until I watched this video. Thank u soooooo muchhhh
This helped me understand DNA Replication better than my teacher has been trying to get us to understand for weeks. THANK YOU!
with your video, i was among the best in my exams. thank you so much DOC.
Out of many videos I have watched, he explains things solid and crystal clear!!!!
I love how detailed and clear this explanation is. Thank you!
I was really confused after my professor went over this in class, but after watching this video it really gave me a better understanding of how DNA replication works!!!! THANK YOU SO MUCH!
That's great to hear! If you think your classmates may find it useful, please do share this video with them! :)
@@PremedHQ professor how do dna polymerase know what exact new dna to produce do they get their information from the coding?
@@mmd123king6DNA polymerase “reads” the existing DNA strands to create two new strands that match the existing ones.
@@bakarolachika187 I do know that... what im saying is do they do this once? and then they dont have to read it again becouse dna gets saved up onto the system or they have to do it before every replication time? That was my question
I've been hearing about Okazaki Fragments since middle school and I never truly understood it till now! Thank you!
Absolutely the best Replication video I have watched!!!...THANK YOU SIR!!!
I love it too. The tutorial is much easier to understand. English is simple with no deep accent. God bless you sir.
A super cute teacher who actually speaks English.
شرح رائع جدا انه افضل شرح شاهدته لهذا الموضوع --احسنت يا دكتور
after personal trainer, I took up sport science university and this is the ONLY VIDEO (or almost only) that explains the reason why Okazaki fragments occour!! not only DESCRIBE but also EXPLAIN (the story of the new primers) very well done
I can't even explain how much this video helped me, I have to give a presentation in two days and no other videos/sources led me to understand the whole Primer in 3' and 5' direction thing. Thank you!
Sir, I just want to thank you so much for explaining this in such a clear and simple way. I thought I was never going to understand replication. Thank you so much!!
This is the first time I watch a DNA replication video and not get lost!! THANK YOUUU
It's my exam in the morning and I find that this video proves to be the most effective way to clear the confusion about DNA replication
omg you are literally a GOD of biology classes, thank you so much!
best video that I've seen about DNA replication
Heartily thank you sir. I had come here because i did not able to take clear concept of my lecture and mam was asked questions but i was not able to answering to mam. However mam challenged me next lecture. Through this video i will explain more than mam could expect from me.
Not a premed, I’ve got a bio exam tomorrow and this video honestly helped so much!
In fact, I've watched thousands of videos on UA-cam, and this is the coolest and simplest video I've ever found. I really thank you very much it will help me in the final !!!!!
OMG!!!!
His explanation is superb.
I don't think I could have understood it better from anyone else. I feel confident enough to teach this to students someday (I'm a teacher In training☺).
Thanks a lot
Great job!
Thank you so much,Teacher. I can only memorize because of your teaching style.
Thank you sooo much!!! I have exam in 2 days and I've been struggling with this lesson.... now it's completely clear..... and now I'm pretty sure imma Rock it😅
Enjoyed the video with good understanding of the process as the professor is soft, clean and clear speaker and covered events of DNA replication in a simplest possible way.
I'm a complete layperson, I have no medical education or training whatsoever. I understood this video, at least at the logical level of what each enzyme does, etc. Thank you for a great video!! I started watching videos about SARS-Cov-2 in an attempt to understand more about it, and now I've fallen down a rabbit hole and I think I want to learn a lot more about molecular biology now. I want to learn way, way more about the processes involving DNA, RNA, cells in general - but more than that I'd love to understand how, physically these things work. Ultimately all of this boils down to chemical reactions, right? That's what I'd love to understand. Molecule X bonds with molecule Y due to its shape, structure etc, and BOOM - now you have what's essentially code being executed and - life. Maybe it's my computing science background which is causing me to be so fascinated by this world which until a week or two ago, I knew zilch about (and still do compared to someone who's actually studied it, of course). My mind is kind of blown and I can see me continuing to fall down this rabbit hole. Maybe I'll start looking for actual constructed courses, but for now, videos like this are a great place to start. Thanks again for such a clear, well structured and explained video!
The best DNA replication video so far💯
I've never understood this concept but after this video.....
Sir Best video ever
Great work sir
Waiting for more new videos 👍👍
Keep going
very clear explanation of the okazaki fragments and how they occur because of the discontinuous replication on the lagging strand. This part is usually missed by students.
my gosh this was legit the best video on replication
Wow! Perfect explanation! This guy deserves it's credit.
fantastic and the language simply superb
I finally have a clear understanding of the replication process. Thank you!
I think I'm going to cry ,thank you so much for this..
This is the best replication video I have ever seen.
Clear, concise, and makes perfect sense. I love that you explained popular words that we commonly hear when discussing DNA replication, but may not have fully understood well. We have all heard the term leading strand, lagging strand, semi conservative, etc. but explaining exactly what they mean in conjunction with the full video explanation really increased my understanding.This attention to detail and your clear understanding of the topic really this video apart from all others.
The best dna repliction video ive seen
I don't usually comment on videos, but this wonderful. Thank you so much!
This was the clearest vid about DNA replication ive seen so far, thank youuu!!!
I didn't understand the thing with the leading- and lagging strand. But now I do(At least much better) than i did before, because of this video.
Thank you!!
This is the best replication vedio
Thank you for such explanation.Your explanation is great.
This video is the best explanation of a DNA replication procedure.
This video cleared my confusion.... I enjoyed it
This is what help me to pass my exam. Thanks a lot.
I thought I understood DNA replication but after watching this video, there's so much well-explained info... I have to figure out how to organize it. By far the best channel and video ~
I've always escaped from this topic but finally had to come down cz of my exams ,my biology teacher doesn't develops good communication,also like she just wanna escape off delivering lecture,found that video useful , definitely gonna share, it's really calming to watch such a cute person explaining so nicely,he just soo looks like Clark kent❤️❤️
Your videos are helping greatly in lockdown ❤️
Love from Bangladesh 👍
Dhonnobaad!
Thank you so much! I have watched so many videos about DNA replication and this is the most helpful and clear one!
I just found out that Dave (the person in these videos) was diagnosed with a brain tumor 2 years ago. He was actually a UCSD Med student.
It was on the news: www.nbcsandiego.com/news/local/UCSD-Medical-Student-Aspiring-Neurologist-Not-Letting-Brain-Tumor-Stop-Him-434170093.html
I checked if there was a way to help out, and found his GoFundMe. It's still open. www.gofundme.com/f/dave-tumor-fight
This is his most popular video so I thought I would post this here. He's amazing!
Oh goodness, that is so sad! He is honestly an amazing person and teacher. His videos save my life in school and also inform me so much that I actually listen to them for fun. Thank you so much for posting this.
oh my gosh, I just watched the link you shared. What an incredible story.. I hope he is still doing good and able to carry out his dreams. What a cool guy.
May Allah bless you and help you . You are a gem man . You are damn good and brave .
This is theeeee first video out of about 10 that I completely understand !! You explained this sssssoooo welll!!! omgeee im so glad I found this channel!!
This video helped me on my MCAT and in my Genetics class. Much Thanks!
thank you! have been confused for WEEKS and this video explained everything
This is the best video on dna replication on youtube. Thank you
Glad it was helpful!
this is absolutely the best video ever. so excited
Thank you!
This man taught me what 7 HOURS of lectures from an ego inflatted professor couldn't fluidly communicate!😂😅😢🎉
Thank you!! You saved me a lot of time. Wish my Cytogenetic teacher explained this well.
Thanks for making me understand what I couldn't understand for 3 days❤️💯
He's very clear on explaining about the DNA I like this guy
IT IS THE BEST VIDEO EVER ON DNA REPLICATION
You have just cleared my confusion . Bravo🎉❤
Ohhh Allah 🥺 I don't how to say thanks to u may Allah bless you for clearing my this concept I literally waste my whole day in clearing this topic I watched lots of videos but I didn't get anything from a single video thank you so much for clearing all steps I'm having exam the day after tomorrow and your video really helped me a lot 🥺 I'm doing graduation now that I got clear this topic I didn't even get this topic in 12
The best video I have watched on DNA replication. I just wished stuff on Telomerase and telomere were added here.
I am Soo grateful for this! Been thinking a lot about this topic and always encountered problems when studing the lagging strand. Thank You for explaining it soo simply and understandably! The enzyme reads the strand from 3' to 5' but the new one is made from 5' to 3' carbon + since the helicase continues to open up the DNA and the ''lagging'' strand is making DNA in the other direction, it simply needs new primers from time to time to catch up with the replicaton fork!
I liked this video better than Khan Academy. By far the best and simple yet clearly explained!
such a clarity and correct use of language
Thank you!
Thank you so much!! You just don't know how much this has helped me
Thank you Sir for making this process look much easier cz I've always thought it's complicated and hard to be explained
The best video on DNA replication I have seen. Thank you for the instruction. This was a major help reviewing for my Genetics MIDTERM.
I have watched so many videos on DNA Replication is this was so helpful!!! its crazy how I can watch 5 videos and not understand and watch yours and totally get it thank you very much!
I must say this.. Thank You Sir.. Didn't know The DNA Replication was simple like this.. Truly, it's not but you made it so.. Thank you
Thank you so much. This is the best video of DNA replication I have watched so far and the only one which made complete sense. This is a life saver video for me... Thanks!
This is the best dna replication video ever !!!
Thank you! What a compliment!
Loved your explanation! Very easy to follow! Thank you so much!
Hooray!
THANK YOU, this is such a great explanation. I kept reading my book over and over but was still confused, thank God for your video :')
wat an absolute god. Thank you for providing me with such enlightening information
This man has enlightened us all with his extensive detail
I love u Dave plz come back...
best lecture on dna replication , great , very informative
Amazing.. just discovered your channel hours before a test.. and I am so grateful to you. It cleared a lot of my doubts. Thank you so much. :)
OMG! Helped me a lot! Thank you! This is the best DNA replication explanation after all.
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