If you are purifying a protein from an SEC column, what fractions do you want to collect?
What will be an ideal response?
It depends on whether or not your protein is large or small. Large proteins elute first
because they go around the beads whereas small proteins go within the beads. So, for large
proteins, you collect the first set of fractions. For smaller proteins, you collect the second set of
proteins.
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Which group does NOT belong to the alveolates?
a. apicomplexans b. diatoms c. free-living ciliates d. dinoflagellates e. parasitic ciliates
What is the correct sequence of events in viral reproduction?
A. endocytosis, uncoating, maturation, and release B. attachment, penetration, biosynthesis, maturation and release C. penetration, attachment, integration, biosynthesis, maturation, release D. attachment, fusion, biosynthesis, maturation, and release
Where does fertilization of the egg by the sperm typically occur?:
a. vagina b. uterus c. uterine tube d. ovary
In a mixed infection experiment, you study two plaque phenotypes of large (l+) versus small (l?) and bumpy (b+) versus smooth (b?). You mix small (l? b+) with smooth (l+ b?) and identify 50 small, smooth and 47 large, bumpy. How far apart are
the genes? A) 99 B) 1000 C) 490 D) 49 E) There is not enough information to calculate the distance.