Predict the level of transcription of the trp operon genes (low to high) in the presence of low levels of tryptophan in e coli cells being in an in-frame deletion of the 2 trp codons that are usually found in the leader peptide. a) middle-level transcriptionb) high transcriptionc) low transcriptiond) all the above

Describe five factors that influence the value of fuel

15 ! come and answer! a(n) disease is caused by a pathogen and can spread among organisms. a infectious b noninfectious c toxic d contaminated

Astudent analyzed ears of corn that demonstrated two traits in the f2 kernels, purple or white colors and smooth on wrinkled shapes. a tabulation of 135 individual kernels gave the following results: purple and smooth = 75 white and smooth = 28 purple and wrinkled = 24 white and wrinkled = 8 what would be the only phenotype present in the f1 ger