Which of the following is a cell type unique to vertebrates, and distinct from endoderm, mesoderm,
and ectoderm?
a. pharyngeal
b. neural crest
c. oral hood
d. notochordal
e. cranial
B
Biology & Microbiology
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Th17 cells are important in the first stages of the adaptive immune response
Indicate whether the statement is true or false.
Biology & Microbiology
Under which of the following taxonomic levels do animals fall?
a. species b. order c. class d. kingdom
Biology & Microbiology
Transcriptional regulation of mitochondrial genes closely resembles regulation of _______ operons
Fill in the blank(s) with correct word
Biology & Microbiology
Which test uses radioactive isotopes to label antibodies or antigens in order to detect minute amounts of corresponding antigen or antibody?
A. Radioimmunoassay (RIA) B. Ouchterlony double diffusion C. Immunelectrophoresis D. Quellung test E. Western blot
Biology & Microbiology