One down, 23 to go. Chromosome 22 has become the first human chromosome whose
DNA sequence is known in full, except for a few minor gaps. Ian Dunham,
coordinator of the international sequencing project at the Sanger Centre in
Cambridge, estimates that the chromosome contains 800 or so genes. The
33.5-million-base sequence includes a continuous strand of 23 million bases, the
largest single chunk of DNA ever logged (Nature, vol 402, p 489). The
sequence includes gaps where it was impossible to clone the DNA using
bacteria.
More from New ÒÁÈ˾þÃ
Explore the latest news, articles and features
Humans
Iron Age Britons may have removed the brains of the dead
News
Life
Frozen squirrel scat preserves ancient DNA from hundreds of species
News
Environment
The last-ditch plan to save coral reefs from utter destruction
Features
Earth
Dinosaur-killing asteroid impact site stayed hot for millions of years
News
Popular articles
Trending New ÒÁÈ˾þà articles
1
Mysterious ‘cold blob’ in the Atlantic suggests the AMOC is weakening
2
Why we should all take quantum physics extremely personally
3
Dinosaur-killing asteroid impact site stayed hot for millions of years
4
The last-ditch plan to save coral reefs from utter destruction
5
Alice Roberts: 'We are fundamentally, at the end of the day, animals'
6
What really happened when ancient humans migrated out of Africa
7
Unpicking endometriosis reveals how it affects more than the pelvis
8
Why you need to future-proof your brain in middle age and how to start
9
What is a ‘normal’ memory slowdown, and when should I worry?
10
How a radical new view of life could reveal its origin – and aliens