Correspondence between Pontecorvo and John L Yuill concerning an update on Pontecorvo's research using strains of Aspergillus niger sent to him by Yuill

• Reference:GB 248 UGC 198/3/4/2/6/6
• Dates of Creation:Jan 1952-Apr 1952
• Physical Description:
  3 letters (3 pages)

• Scope and Content

  He explains how "we can now produce diploid strains of A. niger carrying nuclei heterozygons for genetic factors derived from two different haploid strains. From these diploids we can then derive new stable strains combining or re-combining the factors of the original haploids" .

• Personal Names

  Yuill, John L, 1940s-1970s,