The permeability of a nerve cell membrane depends upon the:
A. number of receptor proteins present.
B. number of open channels.
C. concentration of cholesterol present in the
bilayer.
D. concentration of pump proteins.
B
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DNA polymerase is a primer-dependent enzyme that functions only in the 5'-3' direction. These are the two most fundamental concepts to understanding this enzyme
Based on this, which of the following enzyme pairs are analogous in prokaryotes and eukaryotes? A. DNA pol I : DNA pol ? B. DNA pol II : DNA pol ? C. DNA pol III : DNA pol ? D. All of the answers are correct
What tissues in an animal's body are the targets of genes for behavior?
A. axial skeleton B. forebrain and liver C. nervous system and musculature D. reproductive and urogenital E. innate and instinctual
Humans, as well as other mammals ranging from mice to elephants, have hair. Hair, then, would be
considered to be: a. a derived character. b. an ancestral character. c. a cladistic character. d. an analogous character. e. a polyphyletic character.
____ organized on chromosomes carry the information that controls the functions of the cell
a. Proteins b. Nucleosomes c. Asters d. Genes e. Histones