Which of the following is not true of the main structural forms of actin?
A) Actin filaments may form a filament network (gel).
B) Actin monomers may form actin filaments or G-actin protein complexes.
C) Actin filaments are severed to form filament bundles.
D) Capped filaments are made from actin filaments.
E) Actin filaments form filament bundles.
C) Actin filaments are severed to form filament bundles.
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Prostaglandins may act as local signaling molecules in the uterus, causing ________
Fill in the blank(s) with correct word
Thyroid stimulating immunoglobin causes hyperthyroidism because ______
Fill in the blank(s) with the appropriate word(s).
The highest percentage of non-coding DNA is found in:
a. genes. b. bacteria. c. eukaryotes, with the exception of yeasts. d. viruses. e. yeasts
Denitrifying Bacteria and Archaea are chemoorganotrophs that grow by anaerobic respiration using ________ and producing ________
a. nitrate (NO3–) or nitrite (NO2–) / dinitrogen gas (N2) or nitrous oxide (NO) b. dinitrogen gas (N2) or nitrous oxide (NO) / nitrate (NO3–) or nitrite (NO2–) c. dinitrogen gas (N2) or nitrous oxide (NO) / ammonia (NH3) or CO2 d. nitrate (NO3–) or nitrite (NO2–) / ammonia (NH3) or water