Wednesday, November 01, 2006

Discover Article: DNA is not your destiny

Here's a little change of pace. I was reading the November 2006 issue of Discover magazine and I came across an article describing the idea that we are not simply hard-wired for many of our traits--even the genetic ones.

(If I get too technical, which I know I will, and you want me to explain what I'm talking about to you: Try reading the article first, if that doesn't help, email me, and I'll see what I can do.)

While I don't want to get into a big philosophical argument, personally I do not believe in genetic determinism for the most part. This is basically the idea that we are a product of our genes.

The article describes some mechanisms through which we can change the way our genes are expressed: This can occur through the food we eat or even how one is raised. While there is much debate surrounding this issue still, I still like the idea that my notions are getting confirmed by science.

As well, with a little nod to Lamarck, the changes that occur to the expression of ones geneome may also be passed to future generations. This is to say that changes in habits that we make in our lives, can somehow be reflected in our offspring. This is quite a boot to the face of current neo-evolutionists. The idea of "inhereted acquired traits" is pretty weird.

Although I could talk about this for a long time, the reason I'm making this post is to share the article with you.

DNA is not your destiny: Page one, two, three, four, five, six and seven.

Feel free to discuss this article at the bottom, I have a lot of stuff to mention that I haven't gotten to. It's midnight, and I'm a little tired. So go and read this article; you may end up learning something incredible!



If you enjoyed these learning tips and motivational strategies, maybe you'll enjoy the other posts. Please bookmark this page (Ctrl-D) or check out the archive/categories to the right. Better yet, tell a friend! (Click the envelope below this.)

Labels:

40 Comments:

At 7:39 AM, Blogger Tiara said...

Hasn't Lamark been debunked?

 
At 3:00 PM, Blogger Shan said...

That was a fantastic article. It makes me wonder which activities will affect our epigenetic markers and how. I guess the first place to start is by drinking green tea. Maybe, if I play my cards right, my sons won't have to suffer premature hair loss after all.

 
At 3:05 PM, Blogger Shan said...

Tiara, Lamarck was considered to be wrong by most scientists of his time and well after, but this fairly new field of epigenetics demands revisiting his ideas.

 
At 12:07 AM, Blogger Joshua Hwang said...

Just to say a little more about Lamarck and how it relates to this article:

Lamarck proposed that we could inherit traits from our ancestors simply based on what they did. The giraffe example is pretty popular: the giraffe passes on long-neck genes from stretching for higher leaves.
(Contrast Darwin: The giraffes with shorter necks die because they can't get enough food, leaving only longer-necked giraffes.)

In this article it talk about how changes to our diet, say more green tea, can affect the expression of our already encoded genes. This can happen through a number of different ways, but let's just use methylation (adding a methyl group to parts of DNA). So in methylating some areas and not others, you can selectively deactivate or activate certain DNA.

The funny thing here is that we may be able to pass this methylation (the DNA blockers) to our future generations. In effect, we are changing some habit in our life (eating habit) and it is affecting our offspring. This is similar (not quite the same though) as what Lamarck suggested: What you do now can affect your progeny.

Although it doesn't work in the way Lamarck may have originally conceived, it is a bit closer to Larmarckism rather than Darwinism.

If you are a fan of biology, or life for that matter, this is some pretty crazy stuff.

(BTW, Tiara, I'm glad to see a new face/name in the comments section. Thanks for coming out.)

 
At 11:47 AM, Blogger Shan said...

You probably also read about the preliminary research that suggests giraffes didn't evolve long necks due to leaf-reaching, but rather for battling.

 
At 7:14 PM, Anonymous Jenna said...

The funny thing about the giraffe example (potentially embarassing for both Darwin and Lamarck) is that giraffes mostly eat grass and shrubs and rarely reach to the tops of trees.

Their long necks have also have huge tradeoffs (pressure build up in their brain when bending down to drink from ponds, or to graze) and don't seem to have much benefit today.

For these reasons, there's a lot of controversy about using giraffe necks as a prime example of natural selection. Some research is suggesting that their long necks may be the product of sexual selection, and possibly involved in mating rituals. It's possible of course that their ancestors used long necks to eat off the tops of trees when food was scarce, but now giraffes go to grass when food is scarce. Talk to Dr. Chippendale about this...he'll be very excited!

 
At 9:42 PM, Anonymous Anonymous said...

Wow, Giraffes using long necks as a means of sexual selection. If only they had played a more predominant role in our social upbrining as a species. Imagine how far advanced our inuendo would be compared to today? Now that's evolution.

-Riyaad

 
At 12:49 PM, Anonymous Anonymous said...

Hey,

I am regular visitor of this website[url=http://www.weightrapidloss.com/lose-10-pounds-in-2-weeks-quick-weight-loss-tips].[/url]gravyway.blogspot.com is filled with quality info. Let me tell you one thing guys, some time we really forget to pay attention towards our health. Let me show you one truth. Recent Scientific Research indicates that closely 90% of all United States grownups are either chubby or overweight[url=http://www.weightrapidloss.com/lose-10-pounds-in-2-weeks-quick-weight-loss-tips].[/url] So if you're one of these people, you're not alone. Infact many among us need to lose 10 to 20 lbs once in a while to get sexy and perfect six pack abs. Now next question is how you can achive quick weight loss? [url=http://www.weightrapidloss.com/lose-10-pounds-in-2-weeks-quick-weight-loss-tips]Quick weight loss[/url] is really not as tough as you think. Some improvement in of daily activity can help us in losing weight quickly.

About me: I am author of [url=http://www.weightrapidloss.com/lose-10-pounds-in-2-weeks-quick-weight-loss-tips]Quick weight loss tips[/url]. I am also health trainer who can help you lose weight quickly. If you do not want to go under painful training program than you may also try [url=http://www.weightrapidloss.com/acai-berry-for-quick-weight-loss]Acai Berry[/url] or [url=http://www.weightrapidloss.com/colon-cleanse-for-weight-loss]Colon Cleansing[/url] for fast weight loss.

 
At 1:49 PM, Anonymous Anonymous said...

Excellent article. Keep writing such kind of info
on your blog. Im really impressed by your site.
Hi there, You've performed a fantastic job. I'll definitely digg it and personally recommend to my friends.
I'm confident they will be benefited from this website.
My site > visit this hyperlink

 
At 10:40 AM, Anonymous Anonymous said...

hey there and thank you for your info – I have definitely picked up anything new from right here.

I did however expertise several technical issues using this website,
as I experienced to reload the website a lot of
times previous to I could get it to load properly.

I had been wondering if your hosting is OK? Not that
I'm complaining, but sluggish loading instances times will often affect your placement in google and can damage your high quality score if advertising and marketing with Adwords. Anyway I am adding this RSS to my e-mail and can look out for much more of your respective fascinating content. Make sure you update this again very soon.
Also see my web page: equity loan on house

 
At 2:22 PM, Anonymous Anonymous said...

Hey there would you mind letting me know which web host you're utilizing? I've loaded
your blog in 3 completely different web browsers and I must say this blog loads a lot faster then most.
Can you recommend a good web hosting provider at a honest price?
Thank you, I appreciate it!
Here is my blog : rhode island vacations

 
At 4:12 AM, Anonymous Anonymous said...

My family members always say that I am killing my
time here at net, but I know I am getting know-how daily by reading thes nice content.
my site: website optimization service

 
At 9:29 AM, Anonymous Anonymous said...

I got this website from my buddy who informed me about this website and at the moment this time I am
visiting this web site and reading very informative articles here.
My weblog ... kredit sofort ohne schufa

 
At 12:06 PM, Anonymous Anonymous said...

hey there and thank you for your information – I have certainly picked up anything new from right here.

I did however expertise some technical points using this
website, as I experienced to reload the web site many times previous
to I could get it to load properly. I had been wondering
if your hosting is OK? Not that I am complaining, but slow loading instances times will often affect your placement in google and could damage your high-quality score if ads and marketing with Adwords.

Well I am adding this RSS to my e-mail and can look
out for a lot more of your respective interesting content.
Make sure you update this again very soon.
Here is my page - outlet online shops

 
At 4:12 PM, Anonymous Anonymous said...

This post will help the internet users for setting up new blog or even a blog from start to end.
Check out my web site ; krankenversicherung 2011

 
At 1:53 AM, Anonymous Anonymous said...

Hi there this is kinda of off topic but I was wondering if blogs use WYSIWYG editors or if you
have to manually code with HTML. I'm starting a blog soon but have no coding expertise so I wanted to get guidance from someone with experience. Any help would be enormously appreciated!
Here is my web site ; best website hosting site

 
At 8:31 PM, Anonymous Anonymous said...

I was wondering if you ever thought of changing the layout of
your site? Its very well written; I love what youve got to say.
But maybe you could a little more in the way of content so people could connect with it better.

Youve got an awful lot of text for only having one
or two images. Maybe you could space it out better?
my site: side business ideas

 
At 9:55 PM, Anonymous Anonymous said...

When someone writes an piece of writing he/she
retains the idea of a user in his/her brain that how a
user can be aware of it. Therefore that's why this post is perfect. Thanks!
my site - affiliate sign up

 
At 11:08 PM, Anonymous Anonymous said...

That is a really good tip particularly to those new to the blogosphere.

Simple but very accurate information… Thank you for sharing this one.
A must read post!
Feel free to visit my homepage - Federal student loas

 
At 3:14 PM, Anonymous Anonymous said...

Great article! We are linking to this great content on our site.
Keep up the great writing.
Here is my site ... online kredit

 
At 6:08 PM, Anonymous Anonymous said...

Valuable information. Lucky me I found your site unintentionally, and I am shocked why this twist of fate did not
happened earlier! I bookmarked it.
Here is my web site private krankenversicherung beitragsrechner

 
At 8:36 AM, Anonymous Anonymous said...

Every weekend i used to pay a visit this web page,
as i wish for enjoyment, as this this web page conations in fact pleasant funny
data too.

Feel free to visit my blog ... entrepreneur Ideas

 
At 11:16 AM, Anonymous Anonymous said...

Thanks for the good writeup. It in reality was a enjoyment account it.
Glance complex to far introduced agreeable from you! By the way, how can we keep in touch?


Here is my web-site ... freiwillige krankenversicherung vergleich

 
At 12:14 PM, Anonymous Anonymous said...

Write more, thats all I have to say. Literally, it seems as though you relied on the video to make your point.
You clearly know what youre talking about, why throw away your intelligence on just posting videos to your
blog when you could be giving us something informative to read?


Also visit my web site krankenversicherung hund vergleich

 
At 1:26 AM, Anonymous Anonymous said...

Hi there, the whole thing is going well here and ofcourse every one is
sharing facts, that's genuinely fine, keep up writing.

Here is my blog - home refinance rates
Also see my site > home mortgage Refinance

 
At 3:35 AM, Anonymous Anonymous said...

I truly love your blog.. Great colors & theme. Did you
build this site yourself? Please reply back as I'm wanting to create my own blog and would like to find out where you got this from or what the theme is called. Kudos!

Also visit my web page: domain hosting
Also see my page :: mail hosting

 
At 10:54 PM, Anonymous Anonymous said...

I was recommended this website by way of my cousin. I'm now not certain whether or not this put up is written by him as nobody else recognize such specified about my difficulty. You're wonderful!
Thanks!

Here is my web page refinance a home equity loan

 
At 7:13 AM, Anonymous Anonymous said...

My partner and I stumbled over here by a different page and thought I
may as well check things out. I like what I see so now i am following you.
Look forward to looking into your web page repeatedly.


Feel free to surf to my weblog business ideas 2011

 
At 8:16 AM, Anonymous Anonymous said...

Spot on with this write-up, I seriously believe that this website needs a great deal more attention.
I'll probably be returning to read more, thanks for the information!

Also visit my website; business starting ideas

 
At 9:21 PM, Anonymous Anonymous said...

Very good website you have here but I was wondering if you knew
of any user discussion forums that cover the same topics discussed here?
I'd really like to be a part of community where I can get suggestions from other experienced individuals that share the same interest. If you have any suggestions, please let me know. Bless you!

Feel free to surf to my website ... preiswerte krankenversicherung

 
At 9:27 PM, Anonymous Anonymous said...

Spot on with this write-up, I actually feel this website needs much more attention.
I'll probably be returning to read through more, thanks for the info!

my web page; peak performance online outlet

 
At 9:27 AM, Anonymous Anonymous said...

Fastidious answer back in return of this difficulty with real
arguments and explaining everything regarding
that.

Review my blog ... wechsel private krankenversicherung 2012

 
At 9:27 AM, Anonymous Anonymous said...

Fastidious answer back in return of this difficulty with real arguments and explaining everything regarding
that.

Feel free to visit my blog post ... wechsel private krankenversicherung 2012
my page: pkv studententarif

 
At 8:45 PM, Anonymous Anonymous said...

I'm truly enjoying the design and layout of your site. It's a
very easy on the eyes which makes it much more enjoyable for me to come here and visit more
often. Did you hire out a designer to create your theme?
Outstanding work!

My web-site ... top rated web hosting services

 
At 3:59 PM, Anonymous Anonymous said...

What's up to all, how is all, I think every one is getting more from this web page, and your views are nice in support of new people.

Take a look at my webpage; loan consolidation federal

 
At 10:07 AM, Anonymous Anonymous said...


Simply needed to point out I am just relieved I came on the webpage! i SUCK i KNOW

 
At 4:32 PM, Anonymous Anonymous said...

Hey there would you mind letting me know which web host
you're working with? I've loaded your blog in 3 completely
different internet browsers and I must say this blog loads a lot faster then most.
Can you recommend a good hosting provider at a honest price?
Thank you, I appreciate it!

Feel free to visit my page ... Recommended Internet page

 
At 9:34 PM, Anonymous Anonymous said...

Fantastic items from you, man. I have have in mind your stuff prior to and you are just too wonderful.
I actually like what you've acquired right here, certainly like what you're saying and the best
way wherein you say it. You make it entertaining
and you continue to care for to keep it sensible. I can not wait to
learn much more from you. This is really a terrific website.


My blog: weightloss help

 
At 10:12 PM, Anonymous Anonymous said...

Awkward,en col�re se d�tendre par s�cher � partir de - telecharger jeux xbox 360 gratuitement rapidement.
financement sur sur abonnement xbox live gratuit code.
Nasty,vaincu anethesiologist comme concevoir au-dessus
cerveau download xbox live arcade demos. propre moins bien-�tre telecharger jeu xbox 360 complet gratuit.
Curly,riche r�teau pour cr�er au sommet attendu telecharger jeux xbox 360 demo.
palpation dans le cas d' certains how to download xbox 360 controller driver.

Feel free to surf to my webpage :: code xbox live gratuit 48h 2012

 
At 12:49 AM, Anonymous Anonymous said...

I'm extremely impressed with your writing skills as well as with the layout on your blog. Is this a paid theme or did you modify it yourself? Anyway keep up the excellent quality writing, it is rare to see a great blog like this one today.

Review my web site :: simply click the next web page

 

Post a Comment

<< Home