What is critical to the development of neural crest cell derivatives?
A. close contact with the notochord
B. regulation of N-cadherin
C. muscle development genes like muscle myosin
D. strong cellular adhesions that lock the cells in the place of their origin
B. regulation of N-cadherin
Biology & Microbiology
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A fat contains how many fatty acids?
A. 5 B. 1 C. 2 D. 3 E. 4
Biology & Microbiology
What kind of movement occurs between bones in planar joints?
a. extension b. rotation c. gliding d. abduction
Biology & Microbiology
Suberin is a waxy substance that is typically associated with the
a. primary xylem. b. root hairs. c. endodermis. d. tonoplasts. e. pericycle.
Biology & Microbiology
A molecule whose concentration determines the developmental fate of a cell is called
A) monomorphic. B) a maternal effect gene. C) a signaling molecule. D) a morphogen.
Biology & Microbiology