An organism which is sensitive to an antibiotic is grown in the lab in a pure culture on a medium with the antibiotic , if we see colonies of the organism growing on the plate then it must have undergone

a. transpoon muagenesis
b. spontaneous mutation
c. natural selection
d. x ray induced mutation

the vp test is used to differentiate

a. gram positive organisms
b. gram negative organisms
c. klebsiella vs enterobacter
d. genus of enterobacteriaceae family

Which statement is not an accurate description of meiosis? a) meiosis produces offspring that are genetically diverse. b) meiosis produces offspring that are identical to the parent. c) in sexual reproduction half of the genetic material comes from the father (sperm) and half of the genetic material comes from the mother (egg). d) meiosis decreases the number of chromosomes by half so that when a sperm fertilizes an egg, the resulting zygote has the correct number of chromosomes.

What is the most common structure of volcanoes?

You are given an electron micrograph of a bacterial cell. in the micrograph you can clearly see three thin layers of different densities surrounding the cell. based on the micrograph, you can infer that this cell is and would appear after application of the gram stain procedure. gram-negative / pink gram-positive / purple gram-positive / pink gram-negative / purple