What is the purpose of the respiratory pigments that are specialized proteins in blood?
A) They contain metal ions.
B) They occur only in insects.
C) They increase the efficiency of carbon dioxide transport.
D) They turn the blood blue when oxygen is bound.
A
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Suppose you are culturing tobacco callus in a Petri dish at a 10:1 ratio of auxin to cytokinin. To promote only shoot
development you would ____.
a. increase the cytokinin ratio b. increase the auxin ratio c. reduce the auxin level significantly and increase the cytokinin level slightly d. grow the tobacco in the dark e. grow the tobacco in the light
Endosperm is indicated by
a. A. b. B. c. C. d. D. e. E.
The different proteins characteristic of breast cancer subtypes can be used as _____ for proper diagnosis and
treatment.
a. prebiotics b. biomarkers c. DNA clones d. bioinformatic data e. physical maps
A thin layer of protein, within epithelial tissue, that anchors the epithelium to the extracellular matrix is the
A. basement membrane. B. compact bone. C. hyaline cartilage. D. plasma membrane. E. neuroglia.