Multiple Choice
Why do you think the presence of a specific type of keratin, an intermediate filament protein, in the bloodstream or lymph node is an indicator of metastasis of tumor cells?
A) Intermediate filaments are only found in tumor cells.
B) Keratin is only present if its specific cell type is also present.
C) Intermediate filament proteins cause cells to clump together.
D) None of the other answer options is correct.
Correct Answer:
Verified
Correct Answer:
Verified
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