Consider the operon in model 1. other than the gene that regulates the operon, how many genes are contained within the operon?

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Which of the following is true of microbes? a. ninety-nine percent of all microbes are pathogenic. b. gene expression in bacteria is very similar to gene expression in humans, which facilitates the use of bacteria in recombinant biotechnology and gene therapy. c. all bacterial enzymes are harmful to humans and the environment. d. microbes create pollutants and toxins that harm the environment.

Which type of respiration takes place when there is no oxygen present