Throughout the previous modules you have gained information on the methods used to distinguish different bacteria from one another. This activity serves to reinforce the concepts associated with biochemical tests, help you learn the metabolic strategies associated with individual or groups of bacteria, and strengthen your understanding of basic morphological […]

Assume you are dealt the following hand in draw poker: 5H 6H 7D 8H KH You could discard the king of hearts and hope to draw either a 4 or a 9 giving a straight,or you could discard the 7 of diamonds and hope to draw a heart giving a […]

When a sample is vaporized and injected into a mass spectrometer, the following results are obtained. Mass of Atom (amu) % Abundance 143.911995 3.07 146.914893 14.99 147.914818 11.24 148.917180 13.82 149.917271 7.38 151.919728 26.75 153.922205 22.75 Calculate the atomic mass using the weighted average mass method and identify the element. […]

Explain why the increased prevalence of sickle cell disease among African Americans actually has more to do with the environment than skin color or other phenotypes used to define races. List other examples of balanced polymorphism. Identify a population group with a high prevalence of sickle cell disease other than […]