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

what is this saying?

one part of the electromagnetic spectrum that arrives on earth as solar radiation from the sun is the visible spectrum. wavelengths of the visible spectrum combine to form what we refer to as

answer - d) ultraviolet radiation.

violet /   380–450 nm / 668–789 thz

violet is number 1 in the chart of visible light.