In prokaryotes, the DNA molecule is
A) made of sugars and lipids.
B) single-stranded.
C) circular.
D) more than 1.8 meters (6 feet) long when uncoiled.
C
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Which of the following is directly responsible for the development of secondary sexual characteristics?
a. oocytes b. LH c. estrogen d. FSH e. progesterone
One of Chargaff's rules states that
A. A = G and T = C. B. A = T + G + C. C. A = C and T = G. D. A = T and G = C.
When the cap of an average gilled mushroom is cut off and placed on paper, a spoke-like print eventually appears on the paper under the cap. This powdery material would be
A. mycelia. B. basidiospores. C. sporangiospores. D. hyphae. E. conidiospores.
Synaptic vesicles are
a. at the ends of dendrites and axons b. at the ends of axons only c. along the length of all long fibers d. at the ends of interneurons only e. both b and d are correct