Sentence examples for most embryonic stem from inspiring English sources

But most embryonic stem cells are derived from early human embryos, the stage reached a week or so after the union of egg and sperm, and require the embryos' destruction.

For example, most embryonic stem (ES) cell lines used for knockout experiments are derived from the 129 strain.

Most human embryonic stem cell lines are generated from the blastocyst, an embryonic stage reached five days after fertilization.

The most primitive embryonic stem cells (ESCs), derived from the developing blastocyst, have diploid karyotypes that can remain stable after many passages in vitro [1], [2].

For example, most mouse embryonic stem cell cultures will tend to differentiate spontaneously unless the stem cell phenotype is maintained with LIF or a feeder layer that produces it.

The most-studied embryonic stem cells are mouse embryonic stem cells, which were first reported in 1981.

Over the weekend, aides to Mr. Obama said he was considering overturning President Bush's directive that banned most research on embryonic stem cells.

In the present experiments, we have compared C57BL/6J, the most frequently used strain for behavioral testing [6], and 129/SvEv, a substrain closely related to the 129/Sv substrain from which the most commonly used embryonic stem (ES) cell lines are derived [46] and one that is often used to explore the effect of genetic background on phenotypes associated with targeted genetic alterations.

A large number of expansions were detected in primates (Table 1) most significantly for embryonic stem (ES) cell expressed and repeat associated miRNA familes.

'Poised promoters' are characterized by Polycomb-complex 2 (PRC2) induced H3K27 tri-methylation marks in addition to H3K4 tri-methylation marks, and are most prevalent in embryonic stem cells [ 30].

Here we bring to genomics a scenario of functional principal component analysis, a finite Karhunen-Loève transform, and explicitly decompose the variation in the coverage profiles of 27 chromatin mark ChIP-seq datasets at transcription start sites for H1, one of the most used human embryonic stem cell lines.