In this task, you are given a sentence. You are expected to recognize the name of gene or protein. Although there might be several correct answers, you need to write one of them.

Q:  Vertebrate U6 small nuclear RNA ( snRNA ) loci exemplify a novel class of polymerase III - transcribed genes that lack an intragenic control region ( ICR ) .

A: polymerase III
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Q:  Although several other signal transduction molecules also contain tandemly occurring SH3 and SH2 domains , the function of these closely spaced domains is not well understood .

A: SH2 domains
****
Q:  Prolongation of prothrombin time was not due to depletion of vitamin K - dependent coagulation factors or manifest fibrinolysis , but due to the presence of circulating fibrinogen fibrinmonomer - FDP complexes .

A:
fibrinogen fibrinmonomer
****