In allosteric interactions a. changes that take place in one site of a protein cause changes at a different site or subunit. b. disulfide bonds are broken. c. metal ions always bind to the protein. d. proteins that consist of a single polypeptide chain form aggregates.

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.

How can antibodies "remember" a particular bacterial invader or "antigen" on that invader?

How can active reading strategies you? o a. they can you get into better physical shape. o b. they can you read fewer science articles. o c. they can you understand what you read. o d. they can you avoid reading altogether.