This paper presents a method to address the automatic testing of analog ICs for catastrophic defects.
In all organisms that have been studied, CenH3 deletions are lethal and lead to catastrophic defects in chromosome segregation (Stoler et al., 1995; Buchwitz et al., 1999; Howman et al., 2000; Blower and Karpen, 2001; Talbert et al., 2002).
In contrast, electrically stimulated Tsp4b-deficient embryos showed catastrophic defects in both ECM and BM integrity as well as a dramatic increase in MTJ separation (∼2668 nm, Figure 2 figure supplement 3D,E), while muscle fibers remained intact.
However, deletion of the Mbd1 protein in mouse does not lead to catastrophic developmental defects and instead the mice display only mild neurological defects, though some retrotransposon reactivation was observed [16].
About 2,000 of these abortions involved fetuses that could not have survived outside the womb, either because they had catastrophic genetic defects or they were simply too small.
Using high power microscopy, we could not detect any catastrophic developmental defects that might cause the larval arrest.
[17] Consistently, various studies of Birc5 with conditional knockout mice have shown phenotypes with exaggerated apoptosis, with or without catastrophic mitotic defects.
Importantly, Pitx2 determines right-left heart patterning [ 40, 41], thus complete loss of Pitx2 function causes embryonic lethality with associated catastrophic cardiovascular defects [ 42].
Furthermore, animal studies supported that survivin in conditional knockout mice had shown phenotypes with exaggerated apoptosis, with or without catastrophic mitotic defects [ 12- 16].
Developmental timing mechanisms are intricately linked to pattern formation, and disruption of temporal programs can cause organism wide changes in development that can result in catastrophic birth defects [ 29].
