What term describes a gene or region of a genome where mutations occur much more often than average?
What will be an ideal response?
hotspots of mutation
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At about pH 7 in most cells, what happens to the carboxyl R-group on an amino acid?
A) It acts as a base and gains a proton, giving it a positive charge. B) It acts as an acid and loses a proton, giving it a negative charge. C) It is oxidized, and tends to act as an electron acceptor in redox reactions. D) It remains neutral, like water, and does not have a charge.
Water potential, the inherent capacity of water molecules to move from one site to another when
conditions dictate, is typically represented by the Greek letter ____.
a. ? b. ? c. ? d. ? e. ?
Koalas are slow-moving animals with a mass that is over half digestive tract. And yet they have overreproduced to the point where they are endangering the habitat of certain protected preserves in Australia. How have koalas managed to survive competition with animals that are faster and can eat a greater variety of foods?
What will be an ideal response?
What type of organisms can generate organic molecules and obtain energy from inorganic molecules like iron, sulfur, and hydrogen?
a. chemoautotrophs b. photoautotrophs c. heterotrophs d. homotrophs e. organotrophs