why do we do heat incubation in the beginning??

@jacksonlaboratory

7 жыл бұрын

Thanks for the question. Heat incubation activates the enzyme that will break down the cells and nuclei to expose the DNA.

@nancyarora7455

7 жыл бұрын

thanks :)

@ektagupta7504

4 жыл бұрын

@@jacksonlaboratory For this why don't we use strong detergents for cell lysis? and then enzymes for for degrading nuclear membrane so that DNA gets exposed?

@neigeepierrot4694

4 жыл бұрын

I think to sterilize it good question

@michaelokyere9167

3 жыл бұрын

@@ektagupta7504 STRONG detergents are used for cells with cell walls (and hard ones of course). This experiment's sample were saliva spat by students which is linked with animal cells. Animal cells do not have a cell wall only a cell membrane, hence strong detergent is not advised, scientifically to be used since it might quickly disrupt the cell membrane and denature the very genomic DNA we want to extract. Hence enzymes are mostly preferred...

If you’re in the 23andMe batches that arrived between 29 November and 9 December, this simply process takes seven weeks (and counting).

it's so useful.Thanks

It is a very helpful video for the beginners .....................who want to start research on DNA analysis

this video is easy to procedure level learnig help to experimental research

Hi, can you please make such a wonderful video for DNA Extraction from soil samples?

Maa shaa Allah, Thank you :)

thank you this is so helpful

Do you find it difficult to work with such loose fitting gloves? Trying to work fast and one handed maneuvers causes your gloves to get caught inside the eppendorf tubes when you close them.

thank you for video

GOOD METHODS

Hi does the buffer break down the lipids in the cell membrane as does using detergent?

Are there any special ingredients or protocol steps required for DNA extraction for RADseq projects?

How many available methods are there for DNA extraction from teeth?

Thanks for sharing this video

@terrybash5194

2 жыл бұрын

Thank you so much DR RORPOPOR HERBAL on KZread you saved my life from this deadly PCR virus, I got cured within 14daysly herpesly herpes..........

hello, what is the solution that the saliva goes into while inside the falcon tube?

ITS VERRY IMPORTANT TECHNOLOGY

That disposal cup could be a source for contamination of the sample.

Hello Thenk you so much for the crystal clear method demonstration. I have question regarding this. We can crushing in nitrogen then how much time we store these material??? Like one month or 15 days? Any idea about this.

nah fam, you vortex 2 or 3 at the time if you gangsta

good video

Hey there... I am isolating plant dna from leaf sample and getting smear in it... Even after RNase treatment and purification of the DNA. Could you please provide suggestions regarding the removal the smear... Thank you in advance 🙏

Anak Fk unipa semangat 🔥

It would be very good practice if tubes were labelled from the very start.

@francescosilvestro2092

2 жыл бұрын

Good practice!!

What are the chemicals used for DNA extraction?

What is the Kit used here?

Comment by Allen student entusepro 1st batch saurav Kumar yadav .jai hind

Can anyone agree that pipetting is preatty satisfiying?

How do you remove RNA from DNA? Won’t RNase simply break it down into nucleotides?

From what samples was the DNA extracted from?

I am coming from DNA typing lab classroom

what is the purpose of 90 min incubation?

is it same protocol for extraction of Theileria annulata DNA extraction from animal blood sample?

What does the purifying solution used consist of ?

@zapp1984

Жыл бұрын

All of these "proprietary" solutions involved with DNA are usually salt solutions. They make them proprietary to keep that a secret because people do not want to pay 50 bucks for an ounce of salt water.

Vanakam da mapla

unfortunatly it does not talk about the kit in the begining of the video

what materials where used?

Why we put the solution in ice?

Why do we incubate on ice??

WHY DO YOU OPEN TEST TUBES OVER OPEN TEST TUBES?

@grasthube

3 жыл бұрын

nothing happens, surface tension keeps the water at the bottom of the tube

Which experiment u perform?

I was looking for NaCl Ctab extraction but i think this is the boiling method

please what organism dna extraction is this?

Bonjour, si possible je veux Protocole d'extraction de l'ADN a partire de bacterie

This video is very usually found me

Can somebody explain why sometimes we keep the supernatant and sometimes we throw it away. Like after you grow a culture and you want to store for -20C freeze, we centrifuge and discard the supernatant and keep the pellet. But in this case its the opposite.

@school2341

5 жыл бұрын

In the case you're describing the pellet has the cells in it. In this case, the DNA is contained in the supernatant while impurities (protein, cell wall components, etc.) are contained in the pellet because the purifying solution added to the mixture (that made it cloudy) denatures the cells. The DNA will not precipitate out into a pellet unless you add specific reagents which usually come in another kit. Whether you keep the supernatant or not largely relies on your end goal, and what reagents and procedures you are using.

4 жыл бұрын

That depends which part is important for you. In case of bacteria storage, you pellet the bacteria which you are interested in and thus proceed with the pellet. In case of DNA extraction, you actually use both (in two separate centrifugation steps; unless you use binding columns). First, you precipitate and sediment the proteins which you want to get rid of, while your DNA is in the solution. Hence you work with the supernatant. In the second step, you precipitate your DNA with alcohol and hence you proceed with the pellet.

do we follow the same protocol when extracting DNA from human hair?

@beeaneth

4 жыл бұрын

Same question

@j-skillz0488

4 жыл бұрын

It all depends on the protocol different extraction kits have slightly different protocol but most are similar

How extract DNA whataman filter paper

What method was used in this DNA extraction?

@roberttobias560

3 жыл бұрын

For accuracy

Are you supposed to pipette at a slanted angle like that?

@ambycarr1695

3 жыл бұрын

If you are dispensing the pipette yes. It’s recommended to have it at a 45 degree angle and against the wall of the tube you are dispensing into. It will help “pull” all the volume out.

Hi what do extraction DNA vibrio cholera manul?

I would rather use a Kit such as qiagen or zymo

Can I get the protocol DNA extraction for bacteria?please.

4 жыл бұрын

Hi, write me to tomas.hluska at upol.cz I can translate our "home-made" method for you (I think it's from Sambrook anyway) that we used in our lab course.

What is the purifying solution?

@jacksonlaboratory

6 жыл бұрын

Hi Trasvi. The purifying solution is a proprietary solution from DNAGenotek that precipitates cell debris as part of their saliva extraction kit.

@gilian2587

3 жыл бұрын

Ignore my statement below; it is an incorrect conjecture that would need to occur later in the process and only if they were planning on performing gene splicing. They haven't explained what they plan to do after extracting the DNA. The sample is mixed with the purifying solution AFTER heating the sample. I believe that they are using it to break down and dissolve the cell walls. Then they begin the annealing process (the ice). From there they use the centrifuge to separate the lighter material (dna) from the heavier material (leftover dissolved larger scale cellular detritus - the white pellets). ---- Look up 'Genetic Engineering - Isolating a gene'. Now I am not an expert in this subject -- but if I had to guess; the 'purifying solution' contains either one or many types of 'Restriction Endonucleases' that are used to split the DNA into discrete pieces prior to putting the DNA into their gene sequencer.

@zapp1984

Жыл бұрын

Salt water

Hi! We did DNA extraction from kiwi fruit and we used hand soap with the mixture. My question is which function has the soap in the lab?

@leynayusof5686

6 жыл бұрын

the detergent disrupts the cell and nuclear membranes of each cell to release the DNA. It does this by dissolving lipids and proteins that hold the membranes together.

@George-rk3ii

6 жыл бұрын

leyna yusof thx ❤️

@jessicavancleef1725

5 жыл бұрын

The lysis step. SDS is what you would call the soap. This is one of the first steps, along with a enzyme that breaks down proteins. Then your isopropyl/etoh (alcohol), which precipitates out the DNA since it's not soluble in alcohol.

just procedure ?

Hi! what kind of DNA is that? (genomic, plasmidial...)

@jacksonlaboratory

6 жыл бұрын

It is DNA from mouse tissue.

4 жыл бұрын

@@jacksonlaboratory from mouse tissue? Didn't you say that students spit into the tubes?

@brad3378

3 жыл бұрын

@ The students did spit in the tubes, but they were instructed to chew the mice first.

Good times

What are the thing needed for extract wher we can buy please reply

@aashishtripathi5546

4 жыл бұрын

Ok

My DNA beku future,DNA to life future.kotak es beku To life future. Tofan Andriansah AE

English is so difficult can not got fruitful knowledge.🥺🥺

We extract dna form hair

@beeaneth

4 жыл бұрын

For dna extraction from hair, is it the same method as this?

Can i extract DNA from cooked meat?

@jacksonlaboratory

4 жыл бұрын

Short answer - yes! www.ncbi.nlm.nih.gov/pubmed/18791146

I know it is an old video. Anyone can tell me the purpose of purifying solution? could i use this protocol for E coli solution and for qPCR?

4 жыл бұрын

E. coli has tough cell wall, so I don't think so. You need alkaline lysis for bacteria. qPCR requires clean DNA what should be provided by any kit method.

@AndrewLyon23

3 жыл бұрын

@ or heat... Bacteria break apart easily, 10 min at 95C

3 жыл бұрын

@@AndrewLyon23 we used heat for direct genotyping bacteria by PCR, but does qPCR work as well?

high tech potions class

when will protocol 2 come???

@angurali6141

7 жыл бұрын

Rabin Subba

@arasperver6687

7 жыл бұрын

Angur Ali 👧👧😉🚧↕🚩🚩🚩🚩⚠🚩🚩🚩⚠🚩⚠🗿🗿🏣xcxch^^*^&&&&&;&&

@arasperver6687

7 жыл бұрын

Angur Ali -iklllĺloııkı^oıooooooooooooooooöolöıl.,ll i

@arasperver6687

7 жыл бұрын

The Jackson Laboratory çllşşş

@jacksonlaboratory

7 жыл бұрын

kzread.info/dash/bejne/g42kupttoNXIYKQ.html Protocol 2 - PCR

Why are the samples put in ice for ten minutes before centrifuging out the impurities?

@roberttobias560

3 жыл бұрын

For accuracy

@zapp1984

Жыл бұрын

cold reduces solubility of impurities.

Wow, my lab looks like a hobo dumpster compared to this...

Can this method be used in maize?

4 жыл бұрын

I don't think so. Plants have cell wall, which need to be broken. Often various protocols using CTAB are used.

@grasthube

3 жыл бұрын

most likely.

This video was almost perfect but they had to choose that background music.

Labeling of tubes was not done when placing in ice need to redo video

the pipette should not be on the bench

whats up wer u at velez pipzz

Masa 3.000 masehi ada.

Is it possible to extract DNA from dead people saliva

@avolatube_8253

5 жыл бұрын

why do you want to extract DNA from dead?

@victortestani8455

4 жыл бұрын

A little bit too suspicious buddy

@brittniep9219

3 жыл бұрын

@@avolatube_8253 ... forensics

@grasthube

3 жыл бұрын

are you asking for a friend?

Zero breast cancer awareness

당신이 판촉하는 항목을 구입하는 방법

song? lol

Sorry but the background music is distracting not to mention annoying as hell. I could not finish watching it.

@novelist99

Жыл бұрын

You aren't kidding--a country song for a high-tech topic.

فد فتهمنا😑😑😑😑

fal

ga asik part-part an

Anlamadım

@sonujangra8330

3 жыл бұрын

If blood observed on nasal swab kit during taking sample from nasal, it will be cause of covid-19