DNA Extraction Explained

The questions answered in this video are at the following time points:

0:47 - Who has more chromosomes--a human or a strawberry?
1:18 - Which food works best for DNA extraction and why?
2:05 - Why does rubbing alcohol make the DNA precipitate?
2:48 - Why use COLD rubbing alcohol?
3:01 - Do you need to pour the alcohol into the jar carefully or can you dump it in?
3:31 - What can you do with DNA?
4:32 - WORKSHEET #1 coloring page explained
5:31 - If you extracted DNA from a strawberry and planted it, could you grow a new strawberry?
6:13 - If you at strawberry DNA, could you become a human-strawberry mutant?
7:49 - WORKSHEET #2 coloring page explained
9:54 - Could you make a strawberry taste like a banana?

[alexturner]

Thank you so much for doing the lab and providing the explanations! Since we are learning virtually, we cannot perform the lab together, so I have required my students to watch your lab for extracting DNA and also the follow-up discussion. Not quite as good as doing it in class and hands on, but pretty close! As an additional note I prepared a worksheet based on the lab which required answering the questions why each step was done: for example why add dishwashing detergent? - to dissolve the phospholipid cellular membrane.

[christopheraranci]

Awesome video series! I usually do this lab with my students, but unfortunately that won't be happening this year. It's hard to find a video that also explains the REASONING behind each step in this lab. Excellent job!

[fresto]

Great video. Straightforward, enthusiastic. Thanks.

[reeha]

This video was very helpful, giving answers to all my queries

[fjejjdbdndjdndndytbndndndn]

TBH you where at my school and the fifth graders came and whatched the ballon and all of that it was fun so I subscribed

[Archaeopteryx]

One of the things I find surprising is that DNA was discovered back in the 1860s.

[nnennagrace]

What are the equipment and material for DNA extraction and sequence especially when you want to carry out DNA extraction and sequence for microbal communities associated with fermented cassava

[nateleslie]

let's hope and pray I pass my bio test tomorrow

[asmiterea]

if you add the rubbing alcohol fast as in dumping won't it break the DNA due to the force ? so how it helps get a thicker mass of DNA ?
Also in our class, our teacher asked us to pour it gently..we used kiwi . Why gently pouring alchol helps?

[jilltaylor]

I enjoyed the explanation. Hard to believe a strawberry has more DNA chromosomes than a human.

[angelaroberts]

Have you experimented with adding meat tenderizer to add proteases for better extraction from other fruits?

[SKChacha]

How can the DNA extracted from the strawberry be tested in the lab

[curiouscookie]

What is the next step after the DNA is extracted? How do you identify the base pair sequence?

[flayzy]

is the process of isolating DNA differnt from different types of cells?

[johnkenn]

What kind of polymers could we extract from banana cells??

[heidibochenek]

Could you run the sample through gel electrophoresis?

[Angy-hnjm]

Can human dna be extracted the same way like fruit is?

[gordonfiala]

the Laughy Taffy. where were the ingredients gathered from for your experiment? did you discover the sources of the ingredients (NOT the supplier*)?

[estimatingonediscoveringthree]

“What exactly does this specific piece of dna do”, the idea that this can be determined is incorrect, dna is synergistic and not binary

[omsingharjit]

How to cut that dna for Diy dna fingerprinting ?