Which of the following events does NOT occur in prophase II but does occur in prophase I?
a. crossing over
b. synapsis
c. spindle formation
d. crossing over and synapsis, only
e. crossing over, synapsis, and spindle formation.
D
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Helicase PcrA follows classic Michaelis-Menten kinetics. In this reaction, ATP serves as a substrate for hydrolysis, while the DNA is most appropriately called the _____________
A. product. B. substrate. C. intermediate. D. coenzyme. E. ligand.
Which of these organisms, sometimes called
living fossils, is represented by only one species?
a. horsetails b. club mosses c. liverworts d. ginkgos e. cycads
Using breast cancer as an example, describe the importance of understanding the interactions of an individual’s
genotype with therapeutic drugs when treating patients What will be an ideal response?
Which of the following statements about drug resistance is FALSE?
A) It may be carried on a plasmid. B) It may be transferred from one bacterium to another during conjugation. C) It may be due to enzymes that degrade some antibiotics. D) It is found only in gram-negative bacteria. E) It may be due to increased uptake of a drug.