The letter "C" in the above figure represents
which teeth?
a. incisors
b. molars
c. canines
d. premolars
e. none of these
C
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During sporulation in Bacillus subtilis, the response regulator that positively controls many genes needed for sporulation and negatively controls genes not needed during sporulation is
A. SpoOB. B. SpoOF. C. SpoOC. D. SpoOA.
Which of the following enzymes relieves the strain in DNA introduced by unwinding in E. coli?
A. gyrase B. ligase C. primase D. helicase E. SSB
Photosynthesis must provide a source of electrons and H+ because ____
a. atmospheric CO2 must be oxidized by adding electrons b. CO2 must be reduced to produce sugars c. hydrogen atoms are added to oxygen to form water d. hydrogen ions and electrons react to produce hydrogen gas e. hydrogen ions and electrons are converted into oxygen gas
Hybrid zones are typically ____, presumably because the hybrid organisms are not well adapted for either parental
environment. a. rare b. narrow
c. expansive d. experimental e. restricted to few biomes