MCB 150 FINAL EXAM NEWEST 2026 FEATURING 400 ACCURATE AND VERIFIED QUESTIONS COVERING MOLECULAR AND CELLULAR BIOLOGY, INCLUDING DNA REPLICATION, TRANSCRIPTION, TRANSLATION, CELL STRUCTURE, AND GENE REGULATION

MCB 150 FINAL EXAM NEWEST 2026 FEATURING 400 ACCURATE AND VERIFIED QUESTIONS COVERING MOLECULAR AND CELLULAR BIOLOGY, INCLUDING DNA REPLICATION, TRANSCRIPTION, TRANSLATION, CELL STRUCTURE, AND GENE REGULATION
Question :Which of the following drugs works by
stabilizing microtubules rather than blocking their
formation?
A. Taxol
B. Vinblastine
C. Colchicine
D. Vincristine
E. Colcemid
Correct answer:A. Taxol
Question :Which one of the following statements about
microtubules is correct?
A. Tubulin dimers with nucleoside diphosphates in their
nucleotide binding site(s) have a lower affinity for each
other than tubulin dimers with nucleoside triphosphates in
their nucleotide binding site(s).
B. In vivo, polymerization of microtubules typically
occurs at the minus end because the plus end is anchored.
C. Myosin is a motor protein that moves toward the plus
end of microtubules.
D. Only the alpha subunit of a tubulin dimer has a
nucleotide binding site.
E. ATP is the nucleotide that occupies the nucleotide
binding site(s) of tubulin dimers.
Correct answer:A. Tubulin dimers with nucleoside
diphosphates in their nucleotide binding site(s) have a
lower affinity for each other than tubulin dimers with
nucleoside triphosphates in their nucleotide binding
site(s).

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