When epinephrine binds to its G-protein linked receptor ________ is activated producing ________.
A. adenylyl cyclase; cAMP
B. kinase; calcium
C. phospholipase C; diacylglyceride
D. enzyme linked receptors; protein kinase
E. kinase; transcription factor
Answer: A
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(a) better nutrition. (b) longer storage lives. (c) resistance to disease and insects. (d) all of the above.
Which of the following contains bacteriochlorophyll?
A. Bacillus subtilus B. Staphylococcus aureus C. Streptococcus pyogenes D. E. coli E. Chromatium, Thiospirillum, Thidictyon
Which of the following gases was absent from the atmosphere of the early Earth?
a. carbon dioxide b. oxygen c. nitrogen d. water vapor
In the pedigree below, what do the small triangles represent?
1.offspring of unknown sex
2.affected individual
3.known heterozygote
4.aborted or stillborn offspring
5.proband