In animal cells, spindle microtubules originate from structures called
A) cyclins. B) histones. C) centrioles. D) chromatids.
C
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Lipopolysaccharide is comprised of three moieties (lipid A, core oligosaccharide, and O-antigen), which require ________ biosynthetic pathway(s).
A. six B. one C. two D. three
True or false: Monosaccharides can be found in linear form, but in living organisms are much more commonly found in cyclic form
A. true B. false
The somatic nervous system controls
A) the brain and spinal cord. B) some glands. C) skeletal muscles. D) cardiac muscle. E) smooth muscle.
Scientists have determined that the silversword alliance is most closely related to the tarweed based on
a. phylogenetic similarities. b. molecular comparisons. c. the ability of the two plants to interbreed. d. their geographical closeness. e. seed shape and color.