Shared homologous structures would indicate that two taxa are:a
polyphyletic.
b. monophyletic.
c. outgroups.
d. in different clades.
e. homoplastic.
B
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Yeast research with autonomously replicating sequences (ARS), along with digestion of chromatin with DNase I, have led scientists to determine that
A) DNA is not protected inside a nucleosome. B) ARSs are really plasmids. C) ARSs bond irreversibly to replication enzymes. D) origins of replication are accessible regions of DNA devoid of nucleosomes.
The sediment at the lake bottom is the _____ zone.
A. littoral B. limnetic C. profundal D. benthic E. pelagic
The taxonomic subdivisions from largest to smallest are
A. kingdom, phylum, class, order, family, genus, species. B. kingdom, class, phylum, order, genus, family, species. C. kingdom, phylum, order, class, family, genus, species. D. kingdom, order, class, phylum, genus, family, species.
Who proposed that in any DNA molecule, A = T and G = C?
A. Franklin B. Watson and Crick C. Hershey and Chase D. Chargaff