link to document abstracts link to short briefings documents link to news zone        news resources at What is memory, and intelligence? Incautious claims of IQ genes France zone at - another France

back to abelard's front page

site map

news & archives

article archives at abelard's news and comment zonescience archives: 1 2 3 4 5 6 7 8 9 10 11 12
III-2004: 02 02-2 03 09 18 22 28 IV-2004: 08 09 11 11-2 27 V-2004: 06 07 10 10-2 11 12

New translation, the Magna Carta
You are here: science news for 12.05.2004 < News < Home

science and technology

supposed ‘junk’ dna; but the more is known, the more is seen how little is known

“But ultraconserved segments are particularly unusual because they are 100% identical in man and mouse. Until now, some thought they were human DNA that had contaminated mouse samples. "People had a hard time believing it," Frazer says.

“The presence of exact copies in different animals suggests that even tiny changes in the sequence of these segments destroy whatever they do, and have been weeded out during evolution. Non-essential regions of DNA, by contrast, tend to accumulate mutations so that the sequences vary in different organisms.”

advertising disclaimer

latest abstracts briefings information   resources memory france zone

email abelard email email_abelard [at]

© abelard, 2004, 12 may

all rights reserved

the address for this document is

variable words
prints as 1 A4 pages (on my printer and set-up)