A histone code is:
A. the nucleotide sequence of an individual
histone protein's gene.
B. the pattern of chemical modification of the
DNA wrapped around an individual histone.
C. the pattern of chemical modification of an
individual histone's tail.
D. the number of lysines in an individual
histone that are methylated.
E. None of the answer choices are correct.
C
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The Central Dogma of biology can be stated as
A. proteins® RNA® DNA. B. RNA® DNA® proteins. C. DNA® proteins® RNA. D. DNA® RNA® proteins.
Among eukaryotes, only animals undergo meiosis
a. True, animals are the only group that sexually reproduces. b. False, meiosis is associated with all eukaryotes regardless of whether they reproduce sexually or asexually. c. False, meiosis occurs in all sexually reproducing eukaryotes. d. True, plants and fungi reproduce via asexual reproduction
Hookworms, pinworms, and guinea worms are
a. roundworms. b. flatworms. c. annelids. d. circular worms. e. flukes.
Secretion occurs mainly in the:a
distal convoluted tubule. b. loop of Henle. c. proximal convoluted tubule. d. collecting duct. e. glomerulus