A particular gene is 13,066 nucleotides long. This is
A) about 1.3 microbases.
B) about 13 kilobases.
C) about 1.3 megabases.
D) about 3,011 amino acids.
B) about 13 kilobases.
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After DNA replication is complete, each strand of the original molecule is bound to a new complementary strand. This process is known as
A. disruptive replication. B. conservative replication. C. semiconservative replication. D. dispersive replication. E. stabilizing replication.
In a longitudinal section of a nerve cell, at the presynaptic site you note a variety of vesicles that are anchored to the plasma membrane. The vesicles must be specialized for
A) constitutive secretion. B) regulated secretion. C) polarized secretion. D) zymogen secretion. E) none of the above
Angiosperms
a. are the most successful of all plants. b. are the most diverse of all plants. c. produce seeds inside an enclosed structure. d. have embryos that are provided with endosperm. e. have all of these characteristics
In The Origin of Species, Darwin argued that the mechanism of descent with modification was ________.
A. artificial selection B. natural selection C. bionomial nomenclature