I am a tutor in physiology, physics, chemistry, and mathematics, and I must say you have a very special way of breaking down the information in a comprehensible, sequential manner that is just really enjoyable to hear and watch. You are definitely helping a lot of people with your linear, step-by-step methods. I've always been fond of cell signaling pathways and understanding them from start to finish. Very well organized!
THANK YOOOOOOU. I looked everywhere for a decent video that explains this stuff! This video is clean and not a jumbled and crazy. PLEASE DONT STOP MAKING VIDEOS THEY'RE TOO GOOD!
I've been struggling in class to understand the checkpoints and have had no luck in finding videos that explain how it works. I greatly appreciate your help and finally have a sense as to what is going on!
This is what I always want from a discussion, there are always new trivias/facts added and goes beyond the surface of the lesson (defining terms, explaining what is already in the ppt, and whatnot).
Quick question- Chromosomes can be monads (a single chromatid) or dyads (sister chromatids held together by a centromere; a dyad has two identical strands of DNA held closely together in a location called the centromere). When a cell is in the G1 or Gap 1 Phase of their cell cycle, the nucleus contains monads but during the S phase the DNA is synthesized into the dyads that are seen in the G2 or Gap 2 phase. *The strands are identical assuming that no copying errors (mutations) have occurred during the S phase of the cell cycle Familiarize yourself with the conditions of a cell’s chromosomes during the G1 and G2 phases of the cell cycle. The 4 phases of mitosis: Prophase = chromosomes condense Metaphase = chromosomes line up in the middle of the cell with reference to the two poles (the equatorial plate or metaphase plate) with each chromosome on its own spindle fiber (by itself) Anaphase = separation of the chromosomes Telophase = formation of two nuclear envelopes around the two chromosomal clusters and then the cell divides (cytokinesis) Questions: In humans, there are 46 chromosomes in the nucleus of a cell. When the cells are in the G1 phase the 46 chromosomes are 46 monads which are 46 single chromatids. During the S Phase the 46 monads become 46 dyads which are 46 sister chromatids that will split during the M Phase/Mitosis. What is in the nucleus of the cell after mitosis?
Your videos are incredible and break down the most complex concepts into a step-by-step, comprehensive way. You are absolutely saving me in my biology course! Thank you!
Your method of teaching and breaking down concepts is absolutely remarkable. I am a chemistry teacher and my school required me to teach biology and learning from your videos has literally taught me the whole course in a few simple videos😅. Remarkable explanation. Please keep up the good work.
You are fantastic! As simple as that! I can always go watch your videos, when I need 'the quick and dirty' version of a whole semester, I struggled understanding! And then so many things fall into place! Thank you Dave!
@dave So Cyclins and kinases provide the signal to help the cell move along through the checkpoints...but how do they know the cells are "fit" to continue forward to the next phase.
When does protein synthesis occur (transcription and translation) in relation to cell cycle. Mitosis happens all the time for some cell? Both meiosis cycles happens how many times in an organism life time? Once?
after studying biology in depth for many years I have slowly but surely started believing in a higher power. And after further research I have decided that there can only be 1 God responsible for the intricacy of the human body.
As long as you don't take it too far and become a YEC then that's perfectly fine I disagree strongly because of things like emergence but it's fine of that's what you wanna believe.
@@WokeandProud I do not understand what you mean by "taking it too far" secondly, things like emergence personally are not strong enough evidence to compensate for the incredible intricacy of the Universe and human physiology. However, I would not impose my beliefs on others. Although, there has to be a set of laws prohibiting homosexuality, illicit acitivities etc.
I was asking my self how this signal are translated ??what is this signal??elecrones ??protons?? Need more detail...any way this is a very good channel respect from morocco
i talk about the signaling molecules in this clip! they interact with the genome to promote or inhibit gene expression. stay tuned for a future clip on regulation of gene expression.
one quick question dave. if nerve cells don't divide at all like you said, then how can doctors treat brain cancer? bcs, once the doctors get rid the tumor cells within the brain, don't they wait for certain amount of times so that the cells he cut form the new one. thanks
How is this guy a professor. He is what, 32? EDIT: Also way too good teacher for a professor, especially in Cellbiology. Psst spoiler, he is just a Bachelor.
Watched understanding 3/5- all dna in a chromsome is copied, wrote down notes in my bio textbook, so I will refer back to that when studying (im a bit lazy to copy down everything i learnt)
Wow! This is great continent! Simple and accurate! Just consider revising your explanation on chromatin structure...As far as I know chromosomes only go supercoiled for cell division...the DNA is largely in a "loose" state for replication and storage... otherwise it couldn't be used. (I'm not considering heterochromatin here, of course) Anyhow, great video!! :)
![The Cell Cycle (and cancer) [Updated]](/img/1.gif)
I am a tutor in physiology, physics, chemistry, and mathematics, and I must say you have a very special way of breaking down the information in a comprehensible, sequential manner that is just really enjoyable to hear and watch. You are definitely helping a lot of people with your linear, step-by-step methods. I've always been fond of cell signaling pathways and understanding them from start to finish. Very well organized!
thanks very much!
Jared Nicholas Really. what physiology do you teach? cell biology?
I agree. easy to understand. Good job Professor Dave. I'm also a Science Teacher.
@@ProfessorDaveExplainswhich type of cells? Just asking am not medical profession. Is it stem cells or lymphocytes?
@@Zetsuke4 aaa
THANK YOOOOOOU. I looked everywhere for a decent video that explains this stuff! This video is clean and not a jumbled and crazy. PLEASE DONT STOP MAKING VIDEOS THEY'RE TOO GOOD!
You need an award, sir! You are really helping me out understanding this on a basic level!
I've been struggling in class to understand the checkpoints and have had no luck in finding videos that explain how it works. I greatly appreciate your help and finally have a sense as to what is going on!
Professor Dave is lit af man. I look at this channel for all my college classes. The way he explains is extraordinary.
This is what I always want from a discussion, there are always new trivias/facts added and goes beyond the surface of the lesson (defining terms, explaining what is already in the ppt, and whatnot).
Quick question-
Chromosomes can be monads (a single chromatid) or dyads (sister chromatids held together by a centromere; a dyad has two identical strands of DNA held closely together in a location called the centromere). When a cell is in the G1 or Gap 1 Phase of their cell cycle, the nucleus contains monads but during the S phase the DNA is synthesized into the dyads that are seen in the G2 or Gap 2 phase.
*The strands are identical assuming that no copying errors (mutations) have occurred during the S phase of the cell cycle
Familiarize yourself with the conditions of a cell’s chromosomes during the G1 and G2 phases of the cell cycle.
The 4 phases of mitosis:
Prophase = chromosomes condense
Metaphase = chromosomes line up in the middle of the cell with reference to the two poles (the equatorial plate or metaphase plate) with each chromosome on its own spindle fiber (by itself)
Anaphase = separation of the chromosomes
Telophase = formation of two nuclear envelopes around the two chromosomal clusters and then the cell divides (cytokinesis)
Questions:
In humans, there are 46 chromosomes in the nucleus of a cell. When the cells are in the G1 phase the 46 chromosomes are 46 monads which are 46 single chromatids. During the S Phase the 46 monads become 46 dyads which are 46 sister chromatids that will split during the M Phase/Mitosis. What is in the nucleus of the cell after mitosis?
Your videos are incredible and break down the most complex concepts into a step-by-step, comprehensive way. You are absolutely saving me in my biology course! Thank you!
I am astonished by how you explained it so well. Well done...
Farhan Ahmed yes i wish if it was in arabic bt this is good too
Nicely explained Dave sir!
You deserve more subscribers.
I hope you will get at least 10M subscribers.
Love from India
its reassuring to see that the numbers in my textbook line up perfectly with the examples you give. you are quite literally on the same page.
Your method of teaching and breaking down concepts is absolutely remarkable. I am a chemistry teacher and my school required me to teach biology and learning from your videos has literally taught me the whole course in a few simple videos😅. Remarkable explanation. Please keep up the good work.
Man I gotta love that iconic intro
I LOVE THIS TYPE OF CONTENT. THANK YOU. HIGH SCHOOL ALL OVER AGAIN BUT THIS TIME I'M FOCUSED AND INTERESTED.
thank you biology jesus
yhh he's looking like jesus in movies
You are fantastic! As simple as that! I can always go watch your videos, when I need 'the quick and dirty' version of a whole semester, I struggled understanding! And then so many things fall into place! Thank you Dave!
I’m a first year student of molecular biology! Thank you professor 👨🏫
This is remarkably impressive... Prof Dave, you have a unique talent of deconstructing complex subjects. WOW!
An excellent tutor with an excellent explaining skills. Thank you very much indeed for your tutorial videos Professor Dave!
Well done Dave, this is a great presentation
Thank you I was worried I didn’t under stand how to do these and I was rushing to study and this helped a lot thank you
you are great, thank you Dave!
In school, we watch the explanation videos. At home, I watch the debate videos.
5:00, 5:20, 5:52, 6:40!, 6:50!, 7:22!, 7:40!, 8:35, 9:44, 10:25, 10:51!, 11:08!
This helped a little on the subject, thanks. I even learned some extra information!
you are saving my life right now thank youuuu
İ wish to have you in my collage dude, i didn't just learn, i enjoyed it
Video saved for my upcoming January exam!! Love you.
This is indredibly great explained. Thank you so much!
You deserve way more subscribers
i agree! please tell your friends :)
I really appreciate your tutorials, it helps me a lot. You deserve an award, Sir.
Thank you so much for this....now clearly understood...I can now prepare my presentation☺️...God bless🙏
At this point its not my degree, its our degree!
thanks for the content as always!!
Well explained, understandable and clear... Thank you prof. All your videos are very useful. I've been watching all of them.
Good tutorial as always, Dave!
this is great video! really helped me understanding cell cycle regulation! thanks!
Please make videos with more explanation ....request. Your videos are best .
@dave So Cyclins and kinases provide the signal to help the cell move along through the checkpoints...but how do they know the cells are "fit" to continue forward to the next phase.
thank you professor dave
Thank you so much for this informative video
Thank you brother Dave!
Very nice job Prof Dave!
This was great.
So simplified!!
Thanks.
سبحان الله العظيم ❤
سبحان الخالق ❤
سبحان ارحم الراحمين ❤
سبحان الهادي❤
سبحان المصور اللطيف ❤
Man , that was well expained. Thank you!
OMG THIS IS SO HELPFUL 🌺🌺🌺
perfect!!! sugestion: video about mosaicism
While cells are just being cells, Prof Dave is being his usual compartmentalized messiah self :)
Amazing explanation thank you 🙂
It's well explained. Thank u
Controlled cellular multiplication. And age related healing and Cancer treatment.
just here to say man ur saving my butt. I love you
You have been carrying me since high school am am in university thanks
0:12 looks like a big strong blue guy with red head. Noone you want to argue with trying to get into a club.
Thank you so much for excellent explanation
When does protein synthesis occur (transcription and translation) in relation to cell cycle.
Mitosis happens all the time for some cell?
Both meiosis cycles happens how many times in an organism life time? Once?
This is like watching Cr1TiKaL teach me about biology. Thanks!
Your videos are great, thank you! FYI, the word "kinase" is pronounced KAI-nase.
Thank you ...well explained.
This is so helpful!!
Thank youu
great video really helpful thanks a lot
1:03 Why are they called daughter cells? And not son cells, for example?
we call it daughter cell since only *female* can reproduce.. so as it will grow it will become a mother cell and divide further.
this is good. Love it
after studying biology in depth for many years I have slowly but surely started believing in a higher power. And after further research I have decided that there can only be 1 God responsible for the intricacy of the human body.
As long as you don't take it too far and become a YEC then that's perfectly fine I disagree strongly because of things like emergence but it's fine of that's what you wanna believe.
@@WokeandProud I do not understand what you mean by "taking it too far" secondly, things like emergence personally are not strong enough evidence to compensate for the incredible intricacy of the Universe and human physiology. However, I would not impose my beliefs on others. Although, there has to be a set of laws prohibiting homosexuality, illicit acitivities etc.
@@Osama_AlkadomiNo.
I was asking my self how this signal are translated ??what is this signal??elecrones ??protons?? Need more detail...any way this is a very good channel respect from morocco
i talk about the signaling molecules in this clip! they interact with the genome to promote or inhibit gene expression. stay tuned for a future clip on regulation of gene expression.
Usually some proteins or hormones
Thank you so much sir 🙏
Thanks . It helped me a lot.
Well done 👍
Thank professor dave
one quick question dave. if nerve cells don't divide at all like you said, then how can doctors treat brain cancer? bcs, once the doctors get rid the tumor cells within the brain, don't they wait for certain amount of times so that the cells he cut form the new one. thanks
Even though I don't speak English, I understood the pictures.
I have a test in one hour thanks 😊
You absolutely excellent.... Lacture
This is way better than crush-course.
You gotta be using the campbell biology book
i think there is an error at 1:57
Can someone explain what the role of the Destruction-Box is ?
Very clear thank you
Thank you ❤️
Understood everything sir..😁
Thanks King
THANK YOU SO MUCH MAN!
Why don't we just cut that skin part where cell is dividing rapidly?
I always confuse you with penguinz0
Thanks 👍👍
Cyclin + CDK = MPF (Maturation promoting factor)
Density dependent inhibition
Thank you!
Hey Todd!! aha come on phagocyte! - haha I need to talk to people, I've been studying too long
reminder to self:
6:46
Lmao Kin-aces got me, it is usually pronounced kyn-ace
Okayyyy?? You want a cookie??
How is this guy a professor. He is what, 32?
EDIT: Also way too good teacher for a professor, especially in Cellbiology.
Psst spoiler, he is just a Bachelor.
I'm 37, it's a RUclips channel, and I'm a science communicator with a BA and MS.
Dude you are awesome! :D
Thank you thank you
Do cells grow during the g0 phase?
Nope, G0 phase simply means undividing phase or a phase where cells are at rest
Thank u bro
1:57 it's actually "We, humans, ..." sorry not sorry lol
Watched understanding 3/5- all dna in a chromsome is copied, wrote down notes in my bio textbook, so I will refer back to that when studying (im a bit lazy to copy down everything i learnt)
شكرا
hi taylor
Wow! This is great continent! Simple and accurate! Just consider revising your explanation on chromatin structure...As far as I know chromosomes only go supercoiled for cell division...the DNA is largely in a "loose" state for replication and storage... otherwise it couldn't be used. (I'm not considering heterochromatin here, of course)
Anyhow, great video!! :)