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Which of the following is a correct description of enzymes? A. They help regulate growth and development. B. They increase the rates of chemical reactions by at least a millionfold. C. They are highly specialized nucleotides that recognize, bind with, and inactivate bacteria, toxins, and some viruses. D. They are […]

1. Which disease/condition that you chose has the biggest or most profound effect on the body? 2. What medical specialist would most likely treat this disease/condition? If you or a member of your family had this disease/condition, which treatment option would you choose? Why is this treatment option the best? […]

A population is reproductively isolated. Which of the following is primarily responsible for the introduction of new alleles at genetic loci into the population? (a)Independent assortment during meiosis (b)Germ line mutations (c)Assortive mating (d)Inbreeding (e)Somatic cell mutations   2. A haplotype in a given chromosomal region will be passed on […]

1. Describe the regulation of the trp operon (a) in the presence of tryptophan and (b) the absence of tryptophan. Name all components involved and tell where they bind. 2. What is the function of the lac operon? 3. Describe how the lac operon is regulated by both lactose levels […]