Evidence that cytoskeletal elements have ancient origins comes from:
A. the sequence similarities of cytoskeletal
elements when comparing distantly-related
organisms.
B. the presence of cytoskeletal elements in
both eukaryotes and prokaryotes.
C. the observation that both prokaryotes and
eukaryotes use cytoskeletal elements to
assist cell division.
D. the ability to form functional hybrid
microfilaments from actin monomers taken
from distantly-related organisms.
E. All of these choices are correct.
E
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Fill in the blank(s) with the appropriate word(s).
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