Heidi your video on this is the most descriptive without being too long, vey nice. I did this at a street fair booth for a science company yesterday and you answered some questions I had later!
hey i used fresh rasberries, i put the achohol in the fridge and used a coffee filter to strain it why didnt it work? its been far over and hour, maybe even 2.
It sounds like you did everything correctly. Did you mash fruit with soap to break open cells? Did you get a good layer of alcohol on top of the fruit solution? If you did those things and it still did not work, I'd try a different fruit. Strawberries are always my go to because they never fail me!
I noticed you did not use salt. I have seen some other dna extraction liquids have used salt. What are the pros/cons to adding salt or is salt even necessary since you got good results without salt.
I use salt when extracting human DNA. It helps break the cheek cells away since you can't just smash up your own cells. But for fruit you can mash up the cells well so don't need salt.
According to the New England BioLab, the air bubbles form when "the DNA molecules [folds] in on itself, capturing the air in the liquid"! This happens because DNA is not soluble in alcohol, so the molecules clump together and create those bubbles.
Fun fact: There is no fun fact, you have fallen for such a blatantly obvious trick provided by the colon that originally caught your attention to this comment. Shame on you, shame on your cow, shame on your honor. Stop reading the comments and do the homework or else you will get in trouble.
Heidi your video on this is the most descriptive without being too long, vey nice. I did this at a street fair booth for a science company yesterday and you answered some questions I had later!
hey i used fresh rasberries, i put the achohol in the fridge and used a coffee filter to strain it why didnt it work? its been far over and hour, maybe even 2.
It sounds like you did everything correctly. Did you mash fruit with soap to break open cells? Did you get a good layer of alcohol on top of the fruit solution? If you did those things and it still did not work, I'd try a different fruit. Strawberries are always my go to because they never fail me!
I noticed you did not use salt. I have seen some other dna extraction liquids have used salt. What are the pros/cons to adding salt or is salt even necessary since you got good results without salt.
I use salt when extracting human DNA. It helps break the cheek cells away since you can't just smash up your own cells. But for fruit you can mash up the cells well so don't need salt.
@@HeidiHisrich ok great to know. thank you
According to the New England BioLab, the air bubbles form when "the DNA molecules [folds] in on itself, capturing the air in the liquid"! This happens because DNA is not soluble in alcohol, so the molecules clump together and create those bubbles.
Very cool!!
Could you put it under a microscope?
You could but I don't think it'd be super interesting. Just white strings under a standard light microscope.
can you please not make videos our teacher keeps giving us work
Pretty sure your teacher will give you other work if I stop making them 😉
Haha this is so funny 😂
Fun fact: There is no fun fact, you have fallen for such a blatantly obvious trick provided by the colon that originally caught your attention to this comment. Shame on you, shame on your cow, shame on your honor. Stop reading the comments and do the homework or else you will get in trouble.
dangit fine😞
I have a weird feeling that someone from my class is seeing this message
I found this comment to be pretty amusing 😉