Round the outer ring are shown the 23 chromosomes of the human genome. The lines in blue, in the third ring, show internal rearrangements, in which a stretch of DNA has been moved from one site to another within the same chromosome. The red lines, in the bull's eye, designate switches of DNA from one chromosome to another.
More at The New York Times...
- Log in to post comments
More like this
Where the variation comes from.
Evolution proceeds by the action of many different evolutionary forces on heritable variation. Natural selection leads to the increase in frequency of variation that allows individuals to produce more offspring who, themselves, produce offspring. Genetic drift…
The fugu is a famous fish, at least as a Japanese sushi dish containing a potentially lethal neurotoxin that was featured on an episode of The Simpsons. Fugu is a member of the pufferfish group, which have another claim to fame: an extremely small genome, roughly a tenth the size of that of other…
Shotgun sequencing refers to the process whereby a genome is sequenced and assembled with no prior information regarding the genomic location of any of the DNA we sequence. There are quite a few steps that you have to go through before you have an assembled genome sequence. We're going to cover…
tags: human genome project, chromosome 1, medicine, molecular biology
Scientists have reached a landmark point in one of the world's most important scientific projects by sequencing the last chromosome in the human genome, the so-called "book of life". [Image: False-color photograph showing human…
Wow! Are we lookly at mostly random rearrangements, or does all this flipping proceed according to a program?