Human Physiology : What Are Restriction Enzymes?

[AaronIsAFreak1]

I think just about everyone here is here because there biology teachers don't teach them! haha

[stephanielostthegame]

thank you! my bio teacher doesn't teach..

[tarascotti]

restriction enzymes are not in our body.

[jessmcfly1993]

Thank you :)

[pbreen999]

it's pronounced "ECHO R ONE"

[BalramRules]

she just made ma gcse's seem soo eazy

i sooo should've watched diz video a lil ealier >:((

[Derfiniw88]

eureka!



[theelichtje]

@oneworldfamily : they put the cut dna in electroforesegel and put 'electricity' on it, since dna is an acid and negative charged, it will go through the gel to the positive pole. the small parts will move much faster through this substance

[oneworldfamily]

"They travel different lengths"....to where?

[spunkmurphy]

BurgerKing

[tgkillings]

I guess this is broadly considered human physiology, but I think it would serve people better if this video were labeled "genetics" instead. I can't remember any of my physiology courses covering aspects biotechnology.

[trick58]

Janice Creneti doesn't speak about the topic like an expert and from the information she gives, she doesn't seem to have the knowledge of an expert, at least in this topic.

[matzecc]

I'm sorry but you are clearly wrong. The restriction enzymes are not in your body, they come from bacteria.

[moralaa]

Holy crap, where did this lady get her education and training. Restriction enzymers are naturally found in prokayotes and bacteria. Restriction enzymes are used in genetic engineering for mammals. This cracked me up...

[10243406]

Obviously she knows more than you....... They are used in any type of living organism. Bacteria are a type of prokaryote..... eukaryotes would be organisms that have cells with a true nucleus. And yes alot of restriction enzymes come from normal strains of bacteria in your body , that is why most of the restriction enzymes digest optimally under 37 degrees centigrade, because 37 degrees centigrade is your normal body temperature........ Where did you get your education?

[sarshoy]

@matzecc I agree with you in that the particular restriciton enzyme she mentioned, EcoRI, is found in E. coli, a bacterium. But it seems unlikely that higher organisms such as humans wouldn't have restriction enzymes (or equivalents) also. We too, like bacteria, in certain situations have to cut our DNA (e.g. during crossover events in meiosis).

[tarascotti]

@sarshoy we have dnase enzyme that does cutting but unlike restriction enzyme they do not cut at specific sequences.

[princearora1985]

thnx dats great!!!!!