ฝัง
- เผยแพร่เมื่อ 30 พ.ค. 2020
- If we want to become a functioning human being, we need to have cells grow and replicate. In the final episode of this Human season, Patrick will explain the cell cycle and why we aren't just clones of our parents.
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Nearly every cell in our bodies has roughly six billion base pairs. As our cells continue to grow and replicate our DNA copies its genetic data into the new cells, and while the occasional copying error happens, it only happens about one in ten thousand base pairs.
That’s pretty impressive, right?
On top of that our bodies have checkpoints in place to make sure the errors that do occur get tossed out so they don’t harm us.
DNA is massive and complex, and in today’s Human, Patrick discusses how the cell grows and replicates. We’ll explore the purpose of cell division, the role chromosomes play, and so much more. Watch to find out, and be sure to check out our last episode on how exactly DNA works: • This Is How Your DNA M...
#mitosis #celldivision #DNA #human #physiology #seeker #humanseries
Read More:
Mitosis versus meiosis
www.yourgenome.org/facts/mito...
“Cells divide and reproduce in two ways, mitosis and meiosis. Mitosis results in two identical daughter cells, whereas meiosis results in four sex cells. Below we highlight the keys differences and similarities between the two types of cell division.”
Chromosomes
www.nature.com/scitable/topic...
“Packaging is the reason why the approximately two meters of human DNA can fit into a cell that is only a few micrometers wide. But how, exactly, is DNA compacted to fit within eukaryotic and prokaryotic cells? And what mechanisms do cells use to access this highly compacted genetic material?”
Replication and Distribution of DNA during Mitosis
www.nature.com/scitable/topic...
“Most cells grow, perform the activities needed to survive, and divide to create new cells. These basic processes, known collectively as the cell cycle, are repeated throughout the life of a cell.”
____________________
This Seeker health miniseries will dive deep into the cellular structures, human systems, and overall anatomy that work together to keep our bodies going. Using the visual structure and quick pacing of Seeker’s Sick series, these human bio-focused episodes will give a new audience an inside look on what’s happening inside all of us.
Visit the Seeker website www.seeker.com
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It has been a pleasure hosting and writing this season y’all. Thanks for watching, and stay safe!
Ay, It's the man himself!!
This the last episode of this season??!! Hope the new season start soon, I really enjoy this series
Mitochondria is the powerhouse of the cell:)
😔
if only my teachers taught it like this - Molecular biologist here 😅
yeah...
I'm an 11th grade student and here in Portugal we are taught almost exactly like this. The IPSC's even came in a national exam, not many years ago
Did you also just graduate with a molecular biology BS? Finding a job is going to be hard.
You know I agree with you. But when you put that emoji at the end it makes me feel like you’re a normies or a Karen
so you're a molecular biologist?
name every one of the trillions of molecules in the human body
Thank you Seeker for another great series, loving all of your content at the moment! :D This series has a good balance of key information and simplicity. Hopefully, there's a second one!?
Voting for another installment of this series.
All the videos were great, to say the least. Learned so much. So much resourceful information compiled in each episode. Loved the presentation and narration; interesting writing. Commend the use of graphics/photos, short clips and all the visual aid; just marvellous, superb. Always wondered why things were not taught like this in colleges using these visual aids.
Please accept my warmest gratitude, can't thank you all enough. I am extremely grateful to Dr Patrick too. I sincerely wish you were my professor.
Hi seeker
Another interesting video..
Learned a lot..
Great season..
Hope another season comes soon..
Thanks patrick and seeker team..🙏👍
Wish I would have had your excellent series when I was teaching biology in high school. You give very clear explanations that a teacher can build on to make biology much more interesting. Keep up the excellent work that you do.
I like the way Seeker teaches! This is a great channel and please make more episodes!
super interesting. thank you for the graphics and thorough explanation.
Something i never knew i wanted to learn, and now i want to know about it
Thank you Patrick! I loved this series!
Thanks for the kind words ☺️
Many thanks for this series
I learn more from seeker than I learn at school
This research should be funded and should be made more popular
Your way of explaining is very good
Amazing... Tnx for sharing
The best human educational video season of all time!!!
This is amazing! I cannot believe that some people think this is a result of randomness! complex design points to an intelligent designer.
I’ve always known the steps of mitosis but I never knew the driving forces for the process. Its strange that a very precise and organized process which takes a lot of energy is occurring all the time in our bodies
I hope there is a season two!
What did one dividing cell say to its sibling when it stepped on its foot?
Mitosis!
Isn't that how plantar warts can effectively spread it's cells? What about if it was done with an athlete's foot?
You put your plantars wart in you put your athletes foot out, you wipe your toe jam off and then you flick it all about. That's what it's all about, or aboot if yer a canadian eh? Sorry, guess i went one step over the line there. Hey, we gotta get our kicks somehow! lol
Giant steps are what you take, walking on the escalator~.
Nice one dude
That's a good one
ohhhhhh
Nice
Hopefully we get another season. Seeker human was really good
Patrick Stewart, if I were your boss I’d give you a bonus and a pay raise for your excellent video productions which are a pure learning pleasure to watch. You have a bright future in this business!
Better biology class than school... Thanks👍
Love it to bits. In the next season, maybe chat about cancer, and current advances in genetic engineering including technologies such as CRISPR
very nice information
Laws create order
Order create structure
Structure create functionality
Functionality create purpose
Purpose create motivation
Was a nice ride, thanks
Thank you
I'm always baffled about how a single cell can execute these rather complex steps. It almost looks like there is some "intelligence" in the cell that orchestrates other components on what they should do. Sometimes I picture the interior of a cell as the only (really) living being and us humans just a huge collection of inhabitants - like a city is alive with all the people in it.
Natural processes can give the illusion of "orchestrated intelligence", but remember you are looking at the final result of each step of the process going through trial and error over millions of years. So once you see the big picture of all the steps working as one complete process it can be interpreted as looking "complex". For example, polymer chains (the precursors to DNA/RNA) started self replicating long before the first single celled organism appeared. Than once DNA/RNA started encapsulating itself inside a ball of proteins it had to "figure out" how to self replicate while bringing the protective proteins along with it to the new copies. Than when DNA strands got too long that they needed something to wrap itself around (chromosomes) it had to "figure out" how to replicate while bringing new chromosomes with the new copies. And so on, and so on. Each of these steps taking millions or sometimes billions of years of trial and error.
@@sti454 Suggesting that the cell its not complex and can be interpreted as "complex" is rather interesting. We still say phrases like "it had to figure out how to do something and replicate" and think that its somehow scientific. The truth is we have absolutely no idea how the first cell came to be and simply say "oh its was time and a lot of figuring out". The cell is absolutely baffling and fascinating.
What a nice video from THE BOSS, I really enjoyed your last video with great value , and this once again adds another value. What a good work
👍
Thank you, that means a lot 😊
When you accidentally wake up at 5 am, moments before seeker posts.
I knew there was a god...
Ha! If you were actually about everything science, then what's with that junk-$cience reference in the 2nd sentence you came up with huh?
If there was a god, religion$ wouldn't be cashing in on mythology. Pandemics and war$ don't really produce any afterlives, even if trumpstein and The Church Mafia with their pedo victim's hushmoney fund padded up with donations from delusional enablers wishes to suggest otherwise. Not even the suicides due to pedo victims trying to escape the ongoing abuse produce any real afterlives. Hey, do you like enabled fraud, or didn't realize that you enable it?
True Tech religious warfare
I didn't know jokes were suddenly illegal...
I knew this was coming these freaking athiests
THANK YOU DOCTOR 💚
Wanted more of this interesting stuff ngl
I can't stop noticing his eyes shifting as he's reading, it's driving me crazy.
Cool video, love it
Super cool
I needed these videos in 2009
Any vids on telomeres? Sorry if I've misspelled that.
I love this Newcomer 😁
If plant cells doesn't have centrosomes (centrioles), then what is forming the spindle fibres that separates the homologous chromosomes during cell division?
Its not about making everyone happy all the time. We should talk about controversial opinions.
damn awesome data video!!! ... thanks!!!
I like this human egg development process.
Is it possible for your body to clone a completely opposite type of cell that was meant to clone itself?
It surprising how many organizim lives in our body is like another world reminds me of outer space like we ourselves are part of something or someone's body
What could make something so intelligent?
@0:06. Aren't there ~3 billion base pairs and not 6 billion? There would be ~6 billion nucleotides
Wait, so it's over? I want learn more!!
Meiosis 2: Electric boogaloo
I get that! I honestly do!
I love this video 😍
Last episode?? nooo!
Bio grade 12 flashbacks lol
Subdivisions. In the high school halls, in the shopping malls, in the platelets of cells, be similar or be genetically modified~. - Rush
Wow , our education system seem a little more hasty (from pakistan) ! It was 9th grade for me.
@@syedhusnainshah3055 Ehh, I learned about the very basics of this in middle school during like 7th/8th grade, and then took biology in again in 9th grade. And decided to take AP Biology in 11th. Education is very different throughout the entire US, and even throughout a single state.
That means a new person can be created in the universe
Another way for your body to make cells, is to use it to travel to locations to collect certain materials and then make some batteries.
I have such a nerd crush on this guy... **swoons educationally **
Imagine scientists could develop a way or provide some stimuli to cells to replicate even in old age. What will happen
I think 'tumorgrowth' Will happen
Well, after about 50 replication replacements of itself, it is said that that is when cells really start to show their age.
I dig your thinking though, and encourage you to perform some lab research as you might be the exact very same scientist someday that can make cellular breakdown a thing only read about in history books. You'd so get your own nobel prize for such a noble effort.
I played the whole series while sleeping hoping it'd be all transferred to my brain though ear KANALAS butH nhoooo....i slept...i really wish if we could just transfer those codes into our permanent brain membranes and remember it like it was always there.
It would be super groovy to be able to download an ability, and suddenly you were as good as eddy van halen on guitar. I read that someone once woke from a coma and was able to tell people what they said that they apparently heard prior to properly waking up from such a long form of sleep mode. Sleep seems generally a time when the brain uses the opportunity to defrag itself like a harddrive/swapfile sorting out the information that your accessory sensors helped to record.
It really astounds me as to how perfectly our cells replicate most of the time, until it doesn't, and you end up with cancer.
Had a thought, what is the state of the science for regeneration of lost limbs and organs? I. e. Natural replacement for limb amputation or replacement of lost or damaged organs such as kidney regeneration not replacement?
Aspect Science has a good recent video about that.
Can you build or make your own cells ,it might sound crazy but I just wanna know is it possible
Hats off for Stem cell 🤠
3:53 💀
Purple P*"°s
I don’t remember telling my body to copy them selfs
Trace sure has changed over the years.
I made it 3/4 of this video before my brain said stop!
Wow! I'm impressed You got through the whole video without once mentioning "evolution." There is an awful lot of biology that can be learned without mentioning "evolution."
Why youtube is better for class than school
We still do not know how cells are classified and issued to grow in the uterus or “egg.” Perhaps laminins are sorta spit out in and amount of different kinds and the extra are just dissolved. Puzzle pieces from/away from the box.
when the cell copies itself and assume its original cell weight something, does its weight increase?
Still boggles my mind how something so complicated seemingly arised on its own via evolution
Seeker people come to my school and start teaching me
How does amount of stem cells change in the adult organism over time? If it’s decreasing, then why, what’s the mechanism? What if we artificially support their constant high amount in the body, will it fight degenerative aging processes?
Sad the series ends
The Universe is a exotic living organism that has yet to complete the first phase of its cycle the Skotophotomorphogenesis!
S02!
It’s weird cells been making more of them selves since the beginning of evaluation
👍🏻
histones covalent bonds? possible a x and y chromosome becomes a o(cell) chromosome or 23 different types of stem cells or a chromosome becomes a cell having 23 cells after mitosis
Cells multiply by dividing
Now this is all good and well in the macro-view of biology but what does actually happen in the micro-view of cell-division?
When I think a tad smaller than a cell and look at the carbon, oxygen, hydrogen and sodium molecules, what kind of processes happen there?
Shouldn't there be much more interesting things happening?
How for example does such a molecule "know" which sodium ions to "catch" with magnetic fields to create another "copy" of a cell molecule?
Wouldn't that require some energy at least to form those new molecules that "catch" and bind those ions together in the same way the first cell was?
There must be a ton of chemical reactions and mini-magnetic and electron-migrations going on.
We must not forget that biology cannot exist without physics and chemistry.
Their better be a session two or I will find you lol
😊
Great video but doesn’t really answer what orchestrates what each cell should become (through gene expression etc)? This is a great question and science has absolutely no answer. We probably never will since all of the internal parts of cells and their functions have been identified. There is no known part of a cell that can direct its unbelievably rapid and complex processes. Each cell in a human body produces 2,000 protein molecules per second. What could possibly direct that hyperspeed and uber-complex formation? The nucleus can be removed from a cell and the cell will continue on doing all of its functions such as taking in nutrients, converting those nutrients to usable energy, and ridding itself of waste products. Except it cannot make new proteins. Cells can live for months without their nucleus. So the nucleus isn't the director of cell function, or the "brain" of the cell. I find it amazing that biology students are taught about the functioning of cells, how proteins are formed, how cells convert nutrients into energy, etc. without addressing how all of this is controlled and directed. How do non-living molecules "know" where to go inside and outside of a cell so they can perform their functions? What makes them “swim" from one place to another, and what controls that "swim"? How does mRNA swim through tiny pores in the nuclear membrane, and then swim their way to and lock on to a ribosome, like a living snake with eyes and a brain? The fact that this is a complete unknown is never mentioned in biology texts and classes. What could be a bigger mystery? Maybe the mystery of what entity directs the formation of an infant from an ovum. It's right in front of us. We still have no idea. Or what directs all of the non-living molecules inside of cells. They run around like little geniuses, doing incredibly complex tasks. What directs them?
The mysteries still left to solve are far greater than the ones science has solved. In this field, we are scientifically still babies in the woods.
There has to be something immense that is right in front of our noses, but we humans cannot see it at all. I don't mean in a religious sense. But in a purely scientific sense. What directs the development of a zygote into a fully formed infant? Not DNA for certain. DNA only makes proteins. What directs all of the billions of molecules around the inside of a cell? They all act like they have eyes, a brain, and swim fins. When a cell divides, billions of molecules migrate around to just the perfect location, lock on, and new chromosomes are made. Amazingly, hundreds of thousands of nucleotides do this every second. When we have an injury, how do cells in the body know they have to rush in like an ambulance, and start clotting mechanisms, and tissue healing? What tells them where to go and what to do? The more we learn, the deeper we go, the farther away we become from really understanding how the universe and life (and some would say at the risk of sounding pseudo-scientific, consciousness) work. What an amazing puzzle.
Listen to this Nobel Prize winners acceptance speech: “Nobel Lecture by Barbara McClintock E:
www.nobelprize.org/mediaplayer/?id=1617
Now you know that in fact... cells DO KNOW! That's the important part. But how it knows we don't know. This idea that there is a brain and all that is just speculation. There are tons of evidence that the nucleus is the origin of a lot of activity, but there’s no evidence that it "controls" activities.
Basically what we know is details about pathways and we've "labeled" which proteins signal which. But this doesn’t tell us who the "maestro " is and where he/she resides. How does all that work? How does it know? This is one of the great mysteries of life.
What you are also looking at is the evolution of camera's on smartphones
I’ve got one chromosome missing which is 22q11 so the genetic condition I’ve got is 22q11 Deletion Syndrome
If egg cell have hyflic limit then how we from
I'm just glad I'm a programmer
Speaking of mitosis.. you could be my twin in this video.
I’m sad to see Human go, even if it’s only temporarily.
now go over the Carcinogenic Process of digesting meat and even extracting oxygen from the air we breathe. How to COUNTER cancer through diet and cancer fighting properties and immune system boosting nutrients. Should i consume minerals before ingesting vitamins??
At what point do the cells become human?
2 seconds gand!
I don't think mine are doing it right.
Here after watching The Immortal Life of Henrietta Lacks
7:30 Nonsense. The number of people who think that (especially your viewers but generally as well) is less than the people who believe that the Earth is flat. No dumpster fires
Do any of u guys think that they'll find a way on being immortal because they could fix ur vision or not but I have a good feeling they'll find a good cure for death. Hopefully, I'm still alive to see it.
How many times are you going to redo this same video?
Nnnk
6billion millimeters is something like 4k miles...so yeah not surprising