Abstracts: 



Resource Development 



chromosome 19; large lambda GEM 1 1 libraries for chromosomes 11. 21. 22. and Y; 

 and Lawrist 5 libraries tor ail these chromosomal types except 1 1. Phase II libraries are 

 characterized as fully as resources allow both in-house and by a small number of 

 interested, high-quality external laboratories before release to ATCC. Currently, this 

 characterization by test labs is in progress for all but one of these libraries. The one 

 exception is the chromosome- 1 9 library in Charon 4(); positive characterization results 

 led to the release of this library to the ATCC in Auuust 1988. 



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