Free ribosomes are found... A. in the cytoplasm
B. attached to the endoplasmic reticulum
C. attached to sections of DNA

The trp operon in e.coli regulates genes that code for enzymes required for synthesis of the repressible operon. when tryptophan is not available amino acid tryptophan. the trp operon is a in the environment, the trp repressor protein activeinactiveregulated. therefore, rna polymerase can bind to the genes to begin transcription.

9. the history of life on earth is recorded in

Which step is not included in the step approach to calculating the greatest common divisor?