I think you mean 5-6 atoms wide, not long, otherwise a strand of DNA would have almost no information in it at all, and we wouldn’t be able to see them at all at the macroscopic level. Every single base pair in the DNA strand required about two dozen atoms or so. In reality, the DNA strand is millions if not billions of base pairs long, depending on the organism.
It's a fun science experiment often done in biology classes, and can be done with most things! I believe one can achieve the same result if tested with a banana, for example lol
The detergent helps to break open or "lyse" the cells so that the DNA gets released, and by adding salt it makes the DNA less soluble in water and helps to remove proteins that are bound to the DNA. Finally, cold alcohol solution will cause the DNA to precipitate for us to be able to see it. I plan on making a full video for this to explain it a bit better:)
Can you do the same expiremrnt with another fruit and would like to see if it can be distinguished. I would think yes because dns is unique and will have a different combination. Also, who's much DNA is needed to identify a single strand of human. hair?
It's still interesting that even if it's a clump of DNA the fact that you can even still make out any kind of coil or strand shape is really interesting to me
For those of you wondering why the DNA is still visible if it’s so tiny, it’s because the DNA isn’t just DNA by itself, in between individual strands of DNA and full chromosomes, the DNA will wind around certain proteins and itself several times into coils and strands, with varying thicknesses, the more it winds up before becoming a chromosome. The process he does unwinds the chromosomes and the larger pieces of the DNA but it is still a lot of individual strands coil together, which is what we see under the microscope, we are not looking at individual strands of DNA unfortunately.
Water from an old smelly dish sponge, then microwave the same wet sponge for three minutes and check it again please? I'd love to see if microwaving it would get it to a high enough temperature to kill the bacteria. By wet I mean run it under some water and throw it on a plate or bowl to microwave it, not submerged in water. I would really appreciate you doing this. 🙏
If you do this your microwave would become extremely infected with germs and consequently anything you make in it. I sure hope you aren't doing this or know someone that is
Well since u did not add any proteinase I think a lot of that can be proteins too cuz in our college we have performed extraction dna from fruits and bacteria and lot of time the dna we extract is not exactly the pure dna but a mixture of protein and DNA if the steps are not followed properly Do correct me if I m wrong 😅
remembering my biotechnology classes ..My professor was a great teachers nd he randomly shared this experiment using pineapple. That was out of syllabus for plus 2 curriculum but they way he shared i still remember his passion in that field.. i hv his notes even now . Nd thank you sir for those wonderful classes.!!
the width of DNA is 2 nanometers aka 2000 picometers. The width of an atom is about 25-200 picometers (carbon=70). This mean 1 DNA is aproximanetly 30 atoms wide
Lol that’d be mortifying, but look up Rosalind franklin and her colleague (forgot his name), they were the first people to get an image. They used x-ray crystallography to somehow identify the image or structure of what DNA looks like.
My question is irrelevant to this video but what I don't understand is why does RU-vid shorts operate off of a different network bandwidth then the regular RU-vid videos?
Is just so hard to understand the concept that there are tinie tiny particles that make up everything. And that very object is just a bunch of very tightly packed itty bitty spheres.
Well, all DNA forms chromosomes! During cell division in eukaryotes, the chromatin condenses and causes the chromosomes to become visible. So whatever he showed there were definitely chromosomes.
New subscriber!! May I ask what kinda microscope you use?! I freakin loooove science, chemistry and microbiology. Like, might as well make this one of my hobbies 😅🤩
Bro you won't believe for 12th grade in india which is like the last year of high school we have to perform this experiment for final practical exam in bio but the procedures are given so it cool but man not gonna lie this is my favourite experiment to do
An atom is DEFINITELY smaller than 0.5nm. A typical C-C bond is probably about 1 to 1.5 Armstrong, which Armstrong is equal to 0.1nm. Also, it's impossible for a strand of DNA to be just 5-6 atoms long, because a single nucleotide already contains more than 5-6 atoms. Typically, a DNA is 2nm wide, and each helix turn is about 3.4nm long, which contains hundreds of atoms each turn. And a strand of DNA cannot be only having 1 or 2 turn. Maybe in this case the DNA has been broken down into smaller pieces by the chemicals you added, but the dimensions you mentioned is still wrong. It may sound rude to you, but I think you made a mistake in this video. 🧐
I made this in school for an Peoject and showed it the class but i made it with a tomato. It worked but it had to be cold and it wasnt because i was in school and it was hot. At home it has worked a lot better. But you have SO MUCH DNA WOW. Maybe i do it to with strawberries.😂😅
If you stretched the DNA in one cell all the way out, it would be about 2m long and all the DNA in all your cells put together would be about twice the diameter of the Solar System.
R U A FOOL OF SOME KIND .DNA DOES NOT HAS THE LENGTH OF SOLAR SYSTEM ...OUR SOLARSYSTEM IS 149 MILLION KILOMETERS LONG ..😂as each generations go by the foolery incteases 😅😂
Super cool! When I saw the video I was like "what, does this guy have an electron microscope or something to show it?". But having a giant clump of DNA at less detailed magnification is really cool too. I'll have to try that technique some time, can't wait for the full length vid. Did you know all the DNA in your body unraveled, stretched out and laid end-to-end it would go out past Pluto and back, like 8-10 billion miles? Figured I have to stick that trivia in this comment lol.
