The presence of colonies on the bacterial plate post transformation suggests which of the following? Group of answer choices The colonies contain the transformed plasmid and are not resistant to the antibiotic The colonies contain the transformed plasmid and are resistant to the antibiotic The colonies do not contain the transformed plasmid and are not resistant to the antibiotic The colonies do not contain the transformed plasmid and are resistant to the antibiotic

How do the following factors affect the activity of restriction enzymes? pH conditions Mg2+ concentrations

You infect bacteria with two phages during a cis test. This produces a lysate that contains phage particles. Before you can count outcomes, you need to work out the amount of phage to use in subsequent experiments. You start by making two ten- fold serial dilutions of the lysate and then add 1mL of the final diluted lysate to a plate of permissive strain e.coli. You observe 10 plaques. How many phage per mL were present in the original lysate? a. 10 phage/mL o b. 3,300 phage/mL c. 10,000 phage/mL o d. 1,000 phage/mL e. 33 phage/mL

Which of the following apply to the development of urogenital tract Candida albicans infections? Disruption of population dynamics allowing the RB form of Chlamydia to cause tissue damage Loss of Lactobacillus populations leading to an increase in the local pH Loss of Gardnerella vaginalis populations leading to a lose of Clue cells Loss of the anaerobic environment that promotes the outgrowth of Trichomonas vaginalis None of the answers apply