as BERKELEY: DEPARTMENT OF BACTERIOLOGY

Aums t 18, 1950

Dear Jim

“e've been here a counle of weeks nov, but en't sav that I = getting

mich work done, outside of terching. Stenbr and IT have found, hovever, that
UV-trested cells e2znnot uvdergo enzymatic adaptation (Pseudomons), an 21s0
thet as in coli there my be a measurable residue of activity in unedapted
cells. Now are you getting on with Neurospora? “veryone has been glad
to hear of this project, but I don't think there will be very mmy otwr people
doing it. Rey Barratt, in Tetum's group, has assembled all available mp
data, and will send a copy in about a month. It looks as if it will hove to
be the sex chromosome, 2s all of others look to be nearly telocentrie as far

as existing markers go. Even on the sex chromosome,most of tle markers are
on one side. The most likely factors sre indicated on the skeleton mp: d&
distances very rough:

 

 

hi or
pier : 3 mw
ped 43° a”
5S 8 Ss 2 “3m

t + + + + 4 4

35203 35804 - /

47313 Aja hytne attnine methunme ys4s
Jeue ectrulline ee a | *

~ 35

/ UNIVERSITY OF CALIFORNIA—(Letterhead for interdepartmental use)