Tag Archives: genetics

The descent of robot: artificial evolution

wall_robotResearchers at the University of Aberdeen have developed a new method of designing complex robots using genetic algorithms:

The EA randomly creates large numbers of control “genomes” for the robot. These behaviour patterns are tested in training sessions, and the most successful genomes are “bred” together to create still better versions – until the best control system is arrived at.

MacLeod’s team took this idea a step further, however, and developed an incremental evolutionary algorithm (IEA) capable of adding new parts to its robot brain over time.

Further reading: an excellent non-fiction book that explores the idea of evolution as a general method of design is The Origin of Wealth by Eric Beinhocker.

[from New Scientist, via KurzweilAI][image from badjonni on flickr]

Genetics-themed short story competition

esheepVia Ken Macleod, Pippa Goldsmith of the genomics forum has launched a competition for short stories concerning genetics themes:

Can we truly control our behaviour and exercise free will if our genetic makeup influences our behaviour and the choices we make in life?


Can we blame crime on genes? Who should hold information about our genes? Who should have access to it? What should be the priority, public safety or personal freedoms?


Can an understanding of genes help feed people in developing countries? Do the advantages outweigh the risks?

Max 3000 words, closing data 31st March, £500 first prize – check it out.

[image from Winfairy on flickr]

Are you ready for personalized genomics?

genome Personalized genomics–a rundown on your inherited risk for certain conditions–is becoming a reality.

A couple of hundred dollars, a few drops of saliva and a stamped envelope is all it takes to get a rundown on your inherited risk of around a hundred more-or-less common conditions, everything from bladder cancer and baldness to male infertility and memory loss. You can place your order by Internet with companies like 23andMe (“genetics just got personal”) and deCODEme (“deCODE your health”).

The cost of sequencing an entire individual genome is about $100,000 right now, and Pacific Biosciences in Menlo Park, California (“a revolution in DNA sequencing is coming”), says it will be able, by 2013, to map all three billion base-pairs of a person’s DNA in a quarter of an hour for a few hundred dollars.

Critics are not enthralled. Many diseases are the result of a complex interplay of many different genes that we’re just beginning to understand. And there is fear that people with dicey genomes could be discriminated against by employers, insurers and banks. (President George W. Bush signed the Genetic Information Nondiscrimination Act in the U.S. last year for that very reason.)

But here’s the real question: do you really want to know everything your genome could tell you? Is there any benefit in knowing you’re, say, 20 percent more likely to develop a fatal or debilitating disease? Might the worry about that possibility be almost as damaging to your quality of life as the disease itself?

What do you think?

As fast as the technology as advancing, you don’t have long to make up your mind.

(Via PhysOrg.)

(Image: U.S. Dept. of Energy Office of Science.)

[tags]genetics,DNA,ethics,medicine[/tags]

Andrew Marr on “anti-news”

It’s well worth listening to Andrew Marr’s latest edition of Start the Week in which he goes back over some of the best interviews and guests of the year.

He chooses to focus on “anti-news” – developments and trends that don’t make the headlines but nevertheless have a huge long term impact on the way we live our lives. Futurismic stuff, in fact.

Topics include human identity, bioscience, genetic predetermination, information technology, black swans, and the morality of nanotechnology.

Listen to the podcast here or on BBC iPlayer (available for the next six days).

Homebrew genetic engineering

We’re beginning to see the earliest signs of the “garage startup” genetic engineering company:

In her San Francisco dining room lab, for example, 31-year-old computer programmer Meredith L. Patterson is trying to develop genetically altered yogurt bacteria that will glow green to signal the presence of melamine, the chemical that turned Chinese-made baby formula and pet food deadly.

Regardless of what any particular hobbyist or entrepreneur is actually looking for, if you have enough people experimenting there is a good chance they will find something remarkable (what Nassim “black swan” Taleb calls “stochastic tinkering“). Unfortunately there is also a downside:

Jim Thomas of ETC Group, a biotechnology watchdog organization, warned that synthetic organisms in the hands of amateurs could escape and cause outbreaks of incurable diseases or unpredictable environmental damage.

Here’s hoping a balance can be struck between regulation and innovation.

[article from Physorg][image from frankenstoen on flickr]