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: We therefore investigated whether the promoter activity of the mouse TRH gene is directly regulated by RA using a transient transfection assay into CV - 1 cells .

A: mouse TRH gene
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Q: On the basis of experiments with mutant virus and transfection with isolated genes , the herpes simplex virus immediate - early gene product ICP4 is known to positively regulate the transcription of viral early and late genes and negatively regulate expression from its own promoter .

A: early gene
****
Q: Fluorescence in situ hybridization was used to investigate the physical distribution and revealed that both retrotransposon families are present on all sugar beet chromosomes and largely excluded from chromosomal regions harbouring the 18S - 5 . 8S - 25S rRNA genes .

A:
5 . 8S
****