Peptic ulcers are most closely related to what
type of cell junctions?
a. tight junctions
b. strong adhering junctions
c. gap junctions
d. plasmodesmata
e. both strong adhering junctions and gap
junctions
A
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________ is a bacterial plasmid vector.
A. Lambda B. T4 DNA ligase C. SV40 D. pUC19
Glycolytic enzymes have been found to have roles in all of the following except
A) transcriptional repression. B) apoptosis inhibition. C) transcriptional activator. D) GTP hydrolysis. E) stimulation of cell migration.
Two types of polygamy are:
a. kin selection and reciprocal altruism. b. polygyny and polyandry. c. polygyny and monogamy. d. internal and external. e. isogamy and anisogamy.
What type of bond links two polynucleotide chains to each other in a double helix DNA?
A.) glycosidic bond B.) hydrogen C.) phosphodiester D.) phosphoanhydride E.) disulfide