DNA

3 years, 4 months ago

I don’t know how to start this discussion but I really want to talk about how weird DNA is. It’s a spiral? a double helix? it’s made with 4 chemicals (GTCA) it’s like a spiral ladder?? Not to mention that there’s millions and millions of these strands collectively in all our cells.

And how about chromosomes. little X shaped (and Y in males) DNA constructed codes of stringular information which is supposed to hold genes from our ancestors?

And also, I have experimented with what I heard is this outside force around us that reacts with DNA (I think it’s some kind of light, but I have no reason to think this). Like say you love someone, as long as you feel this love, you will be more open to getting a better reaction in your DNA from your environment. In my experiment this was true, but I have yet been able to replicate my results. A new test is being started by my friend and I may have better info later.

So anyways, DNA is strange and whenever I think about it I can’t help but picture a huge (huge) 4 dimensional landscape (if you know what a tesseract is this may help to understand) and then inside was a bunch of spiral waves interacting with eachother, until after 4 times and lots of years of sharing genes…. we get a highly evolved and self aware species (compared to MOST other animals) and it exists in these huge amount of spiraling DNA.

And how is it that we replicate our DNA?

December 14, 2011 at 8:35 pm

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Profile photo of Kevin Kevin (@placid) 3 years, 4 months ago ago
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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

@Kevin cooooool!

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Profile photo of John OMallen John OMallen (@omallen) 3 years, 4 months ago ago

A protein called DNA Helicase comes along and ‘unzips’ the DNA strands. This is called Transcription. The next step is Translation where DNA Polymerase copies the DNA from the bases (except for Thymine, it just uses Uracil). It is then read by the Rough ER and makes amino acids and proteins.

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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

Is DNA potentially infinite. I remember learning that everyones GATC code is each different, and it’s like this big complicated mess of codes that makes us. But i’ve always wondered, if there’s only 4 codes by 46? chromosomes… like sure the number is huge, but there is still a limit right? I mean is there a way that the human race will run out of different options and will not be able to change? like evolution.
I dunno what i’m asking and I probably sound stupid. i’m just trying to confirm my belief that when I was told that there is infinite possibilities it was wrong, and there is actually a specific number before we run out of possibilities.

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Profile photo of Austin Austin (@austinmartin) 3 years, 4 months ago ago

We don’t just have four bases per chromosome. The entire human genome has about 3 billion DNA base pairs. But that isn’t a fixed number. Other forms of life have different amounts of DNA — like an amoeba has 670 billion base pairs. It’s counter intuitive. But the point is, the size of our genome is by no means any sort of limiting factor.

On top of that, most of the genome isn’t even used to express genes. Only a fraction of your genome determines what you are — geneticists sometimes call the rest “junk DNA”. We’re only beginning to explore what it’s for.

In short, evolution will never run short of possibilities. The numbers are simply too high.

I think I remember reading somewhere that the potential combinations of base pairs in a given genome is actually higher than the number of particles that exist in the entire universe.

Think about that. That’s insanely mind-blowing.

Life is so incredibly diverse, and it will never stop changing, growing, shrinking, ebbing, flowing, evolving, diversifying, etc. It’s so beautiful. I get choked up just thinking about it.

Thanks for bringing up this topic, Joseph. DNA is awesome.

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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

@Austin Thanks for sharing that information. That’s awesome how huge it is. I understand better :) It seems so complicated but it’s just very complex. Apparently we’ve successfully mapped out a whole genome sequence? What does this mean for scientific advancement?

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Profile photo of John OMallen John OMallen (@omallen) 3 years, 4 months ago ago

Did you know we don’t even use some 80-90% Of our DNA, it’s called “junk DNA” for lack of a better term.

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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

Don’t use? It must have a purpose?

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Profile photo of Daniel Tate Daniel Tate (@dctate) 3 years, 4 months ago ago

A lot of that DNA is actually viral DNA. Over the period of our existence, viruses have been injecting their DNA into ours, with no discernible effects, nevertheless it’s still there. It’s strange to think that a good portion of our DNA isn’t even human in origin. WEIRD.

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Profile photo of eastsighed eastsighed (@eastsighed) 3 years, 4 months ago ago

Yeah, they’re called “introns,” formally. I asked my science teacher the same thing, like seriously? They don’t do anything? He wasn’t able to answer me. I was pissed. In any case, they aren’t used and are in many cases cut out when used when dealing with RNA/protein synthesis, if I’m not mistaken.

Due to mutations such as base additions and substitutions for the CATG, genome possibilities are truly infitite if sexual reproduction keeps occurring. And I mean, radiation messes with people’s genes… there’s that too I guess. and probably other things my mind cannot summon at this moment.

http://ocw.mit.edu/courses/nuclear-engineering/22-55j-principles-of-radiation-interactions-fall-2004/lecture-notes/ef_of_rad_on_dna.pdf

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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

Lots of knowledge new to me has been presented. I thank you all :)

I’ve thought of another question. If most of our DNA doesn’t originate or have anything to do with being human, how do you discern two different types DNA. like a human from a cow, or a human from a plant. Is there special characteristics that differ from animal to animal? or is DNA a type of collective material that is shared between all living things?

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Profile photo of Daniel Tate Daniel Tate (@dctate) 3 years, 4 months ago ago

DNA is shared between all living things. Even the non-living things that we call viruses. I know how closely we are related to everything else, but what makes us specifically human is incredibly small in comparison to what makes us organisms.

The cool thing about the theory of evolution is that if we study the DNA of organisms, based on similarities and differences, how far ago we split in the evolutionary chain. That’s why mammals are more related to other mammals than birds or reptiles, and why humans are more related to primates. One of the weirder ones is that animals are more related to fungi than plants.

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Dude you need to take some bio classes. That shit will blow your mind. It’s nice to see such curiosity.

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Profile photo of eastsighed eastsighed (@eastsighed) 3 years, 4 months ago ago

The number of chromosomes are a big distinguishing factor in different organisms.

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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

In school I had to choose between science or music and I picked my passion. I was kind of unlucky, but I will continue to learn science no matter what. I had a cool day dream once of spiraling rainbow ladders which appeared out from the earth and you climb it into another dimension and everything becomes a crystal cloud landscape :P

Does anyone have anything to say about how DNA is affected by its environment? Say a person that is told they are weak and they live in a fearful environment are more prone to virus’ and stuff as opposed to someone in a loving environment?

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Profile photo of Morgan Morgan (@m17lee) 3 years, 4 months ago ago

Awesome posts guys. I have biology coming up this semester and now I’m completing siked for it. And amazing video, I feel like I just learned so much :D

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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

@Morgan I know right, that interactive video made learning super interesting! I’m glad this discussion made you excited to learn :)

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Profile photo of Daniel Tate Daniel Tate (@dctate) 3 years, 4 months ago ago

That wouldn’t deal directly with DNA. That would pertain more towards how humans are affected by their environment anyways. There are so many factors that affect our health either positively or negatively, and they are both internal and external. Just because I am a person with a positive disposition doesn’t mean that I am going to be less susceptible to illness. In fact, compared to most, I have a pretty weak immune system, but most of the time is just the minor stuff (I’ve had a sinus infection for so long that I don’t even remember when I got it).

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Profile photo of Morgan Morgan (@m17lee) 3 years, 4 months ago ago

@Joseph yea it’s awesome. good topic. kudos

@daniel That’s a bit of a bummer but at least it kind of relates, i’ve got a rejuvinated spark for science.

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Profile photo of Alex Alex (@hollowinfinity) 3 years, 4 months ago ago

Can’t find the article currently, but I came across one that showed that the ‘junk dna’ is structured like our language is. This raises the question: Do we change our DNA, or does our DNA change us?

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Profile photo of James James (@jameslarson13) 3 years, 4 months ago ago

@alex, we change the expression of our dna.

also, there was a video on here that talks specifically about how love and fear affect the expression of DNA.

20 minutes, and it needs your full attention. it’s some sciency shit.

http://www.stumbleupon.com/su/1zq671

there are a couple of theories about introns, but so far we don’t have much conclusive evidence.

background: DNA is transcribed to pre-mRNA. pre-mRNA is then cut up into three pieces. the middle piece you keep and its called the exon the introns are junk. the exon is now just called mRNA. some other stuff happens and you get proteins which are essential for everything keeping you alive, but i’m not gunna go in depth into that.

wiki:
Alternative splicing of introns within a gene acts to introduce greater variability of protein sequences translated from a single gene, allowing multiple related proteins to be generated from a single gene and a single precursor mRNA transcript.

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Profile photo of Peter Peter (@searchingforthetruth) 3 years, 4 months ago ago

Awesome video series by Dan Winter…”The Purpose of DNA”

“http://www.youtube.com/watch?v=zRLiaW_uPYw”

I only watched the first 4 videos..but i like his postulation that the frequencies of the heart… influenced by the emotions and feelings of the mind… can actually change the physical structure of the DNA

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Profile photo of James James (@jameslarson13) 3 years, 4 months ago ago

the video i posted talks about the same shit. emotions and such.
seems a lot of people support this theory

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Profile photo of Joseph Joseph (@warriors41) 3 years, 4 months ago ago

Wow I have not watched any videos yet but you guys are on exactly the subject which interests me :) I need to show you guys pictures of my experiment. It was inspired by Masaru Emoto and his experiments with water. If you say something good to water, it freezes in a beautiful snowflake. If you tell it you hate it, it bunches up into a gross pile.

My experiment used water and rice. Rice has DNA right? I took two identical jars, filled them with the same amount of water and rice, but on one I wrote love and the other I wrote fear and after less than a month, without doing anything to either jars! the fear turned moldy and the love did not.
This link should bring you to my pictures http://www.facebook.com/media/set/?set=a.10150236788991955.360820.598101954&type=1&l=eb8eb717ff

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Profile photo of John OMallen John OMallen (@omallen) 3 years, 4 months ago ago

Works with water too.
Once heard a funny theory stating that the ‘junk DNA’ is the portions of our past lives being carried with us.

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