MEMO FROM TO: JF Crow TX J. LEDERBERG RC GENETICS DEPARTMENT RO STANFORD UNIVERSITY STANFORD, CALIFORNIA Dear Jin: JUL 19 1970 Further on venetie load Have you or anyone else worked out 1) the cost of a reciprocal transdocation 2) the ‘theory of the of a {¢f¥ translocational event under drift (but assuming that aneuploid has “zero or intermed. fitness). diffusion or extinction ageren rene! Rela Seta mei