Viruses are composed of
A) DNA and protein.
B) only protein.
C) RNA and lipid.
D) nucleic acid,protein,and sometimes lipid.
E) only nucleic acid.
Correct Answer:
Verified
Q29: The major structural elements of the cytoskeleton
Q30: Which of the following organelles has only
Q31: Prokaryotes have _ ribosomes with _ and
Q32: A(n)_ is composed of tetrameric protofilaments.
A)extracellular matrix
B)microtubule
C)bacteriophage
D)microfilament
E)intermediate
Q33: Intermediate filaments are
A)different in different cell types.
B)smaller
Q35: The main role of the central vacuole
Q36: Lignin is an important component in
A)tight junctions.
B)plant
Q37: Viroids differ from viruses in that they
A)are
Q38: Mitochondria are thought to have evolved from
Q39: Viruses are important in the study of
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