DNA: Key to Life (clip)

[distractionxx]

very interesting video thanks

[msjessypp]

some really good stuff here

[16wonghs1]

email me

[16wonghs1]

guys my email adress is 16wonghs1@student.wis.edu.hk

[16wonghs1]

IT good

[dgdhqgdyukqud]

A legnépszerűbbek között találjuk azt a májusi cikket, amely szerint a mikrobiológus, immunológus professzor arra (is) alapozza feltevését, hogy ősi, archaikus makromolekulák vizsgálata közben kiderült: az első sejtekben a DNS még nem öregedett. Az ősi sejtek értek, szaporodtak, de nem haltak meg.

Halhatatlanok voltak, nem következett be náluk apoptózis.

[mlpman246]

I thought Mr.DNA would be in this. I guess I was wrong.

[JungleJargon]

The Answer to life: watch?v=fE8VO6z4tcg

[PrivationProductions]

um no we dont want to buy this bs, we want you to put the video up for the edification of the species

[baileypug]

they also determine your special talents

[bobstevefrank123]

In RNA, U (uracil) bonds to A instead of T.

[robo2000nitro]

wow this video is ancient

[ShadowManRO]

WHAT determines the precise combination sequence of the chemical basis pairs in that huge chain of DNA?

[heartlessvietboy]

We should be breaking down Cell Biology but we are not.

[TheAmazingJoke]

Adenine is always with thynine.... guanine is always with cytosine

[MrNikosJohnson]

buy the vid !!!!!!!

[deluxedookie]

that thing is huge as fuck no way to know everything about.

[XSirApocalypseX]

It's a really complex system, much complexer than in this video shown. Many enzymes, chemical structures and proteins work in different ways and in much speed in this system.

[tallicafan86]

@XSirApocalypseX complexer?

[XSirApocalypseX]

@tallicafan86 Yes, there are proteins, that give a negative feedback to the DNA, and much more.

Chemicaly is Adenine, Xanthine, Hypoxanthine and Guanine are Purin-bases (Pyrimidin+Imidazol) and Thymine, Cytosine and Uracil Pyrimidin-bases.

[Langesax]

Me thinks the slide whistle at 0:20 might indicate this is set to a young audience. Gotta start simple somewhere.

[shanefairhead]

Its rather too simplistic this demonstration. At the start they refer to the phosphate-ribose backbone, as a phosphate and a sugar, which is clearly wrong as there are many forms of these two substances the sugar involved is a ribose sugar, or a pentose. It also did not explain why it is a helix, and what form of helix it actually is, which is a Alpha-Helix, as there are also different forms of this: Beta-Helix, and Zeta-Helix.

[FreestyleBoy2010]

Thats called the double helix . read about it

[Lydiansolo]

It is correct in both the illustration and the explanation. From about 0.53 when the illustration shows A then G... they are not describing base pairing at this point (the A and G are from different 'rungs' of the helix).

[mariya600]

Actually A bonds to T

and C bonds to G

[Theonewhoclimbs28]

It's weird that they got that right in the explanation but wrong in the illustration.

[BonJovi7139]

I'm with you. Definitely... A joins T and C joins G

[zealot256]

@mariya600 They never said otherwise... When A bonds to T, you will see T joined with A, etc.

[mariya600]

@zealot256

I see your point, but initially when it was presenting the bases visually, they did it incorrectly.

[zealot256]

@mariya600 Ah, I understand.

[xristinaism]

@mariya600

and A bonds to U

and C bonds to G for RNA

[youbintubinallday]

@mariya600 That is what the video showed.  Is it not?

[sunirayidi]

this is basic DNA stru.....