BIOS 220 Chapter Notes - Chapter 5: Proline, Histidine, Penicillin
8 Sep 2016
School
Department
Course
Professor
Document Summary
The "gal" gene enters at 25 minutes according to the graph: maximum transfer happens at 25, the "ton","azi", "lac" genes enter and can be part of the transcojungant, thi 2, lac1, pro3, gal 312 gly. 34. ) a) +++ x m r tu(m-r distance) 2812= (100%)(2812)/10342= 27. 2 b. ) m and tu have the farthest distance between them so the gene order is m r tu c. ) c. o. c= actual number of double cross over compared to the expected. The expected number of double cross overs was . 128x. 208x10342= 275. c. o. c= (232/275)= 1. 2. There are more double cross over events than predicted. This means that there will be one cross over followed by another in the same dna molecule. 35. ) a) i: minimal plus proline + histidine. : minimal plus purines and proline b. ) the order can be deduced from cotransfer rates, pur-his-pro c. ) closer the genes, higher the rate of transfer.
