Ionizing events from irradiation are considered to be direct effects if they occur with _____ molecules.
a) water
b) DNA
c) protein
d) both water and DNA
Ans: b) DNA
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In figure "A", what is being injected into the
host cell?
a. enzymes b. the protein coat c. nucleic acids d. ribosomes e. more than one of these
On the basis of nutrient content, a lake that has received large amounts of runoff from farms, feedlots, or sewage is classified as a(n) ________ lake
Fill in the blank(s) with correct word
Biochemical oxygen demand is a measure of the
A) number of bacteria present in a water sample. B) amount of oxygen present in a water sample. C) amount of organic matter present in a water sample. D) amount of undissolved solid matter present in a water sample. E) amount of nitrogen in a water sample.
Forms of inheritance that do not follow typical Mendelian patterns and that appear to be more influenced by the parent contributing the most cytoplasm to the embryo are grouped under the general heading of ________
A) neo-Mendelian inheritance B) suppressive inheritance C) sex-linked inheritance D) dominance and/or recessiveness E) extrachromosomal inheritance