The ultracentriguge is an important piece of lab equipment frequently used by cell biologists. What are some applications for the ultracentrifuge? choose one or more
A.) determining whether prokaryotic cells are bacteria or archaea
B.) separating isomers of 6-carbon sugars from each other
C.) separating different cellular organelles from each other
D.) determining the sequence of (linear order of) monomers in a macromolecular polymer
Ans: C.) separating different cellular organelles from each other
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Nondisjunction of a single pair of autosomes can lead to all of the following except
A. aneuploidy. B. monosomy. C. trisomy. D. euploidy.
During development in the mother's uterus, human embryos have pharyngeal pouches (sometimes called gill slits) that later develop into various glands. Fish also have pharyngeal pouches as embryos, but these develop into gills. The best explanation for why human and fish embryos develop pharyngeal pouches is
A. humans and fish share a common ancestor that had gills. B. human embryos need gill slits to breathe in the uterus. C. humans and fish both develop pharyngeal pouches by random chance. D. fish evolved from humans.
The distribution of mammalian fossils on Australia, South America, and Africa help support the idea of continental drift.
Answer the following statement true (T) or false (F)
Who was the Augustinian monk that conducted a decade of experiments on the garden pea, eventually showing that traits are passed from parents to offspring in predictable ways?
A) Aristotle B) Alfred Wallace C) Gregor Mendel D) Francis Crick E) Hippocrates