However, Harris became silenced on the topic of race, and did not write about it for the remainder of his academic career.
Very often, one of the two duplicates formed a pseudo-gene, and became silenced [ 6, 30].
Consistent with this proposal, EPRV-derived enhancer-promotor sequences integrated as transgenes into tobacco chromosomes became silenced and methylated in the presence of homologous EPRVs [ 15].
Similar observations were obtained from human ESCs in which HERV-H was highly expressed but became silenced on differentiation into embryoid bodies [ 91].
The induced expression of endogenous Oct4, Sox2, (and partially of c-myc) homologs in all species and their continued expression when the mouse transgenes became silenced suggests that these genes may be playing more conserved inductive roles.
Following Cre-mediated recombination and a five-day negative selection with ganciclovir to exclude cells harbouring the original hygromycin B-herpes simplex virus thymidine kinase fusion (HyTK) cassette, each of the LTR reporters became silenced, while the CMV promoter maintained expression (data not shown).
In this study, we investigated whether MGMT becomes silenced by promoter methylation in malignant pleural mesothelioma (MPM), an aggressive cancer of the pleura associated with a poor prognosis.
This is how perfectly intelligent, well-read writers, commentators, and broadcasters become silenced by the Islamophobia smear fear -- and rationalize themselves into becoming unaware victims of it.
Such a reversible Ptetbi regulation should not be possible if transcriptionally inactive Ptetbi become silenced.
These results suggest that the responder genes controlled by Ptetbi may become silenced in neurons during development.
