Furthermore, non-detection of semen does not necessarily mean that a condom was used during intercourse; it could also mean that intercourse had either occurred outside the period of detection or had not occurred at all [ 17, 18].
This implies that exchange of such genes may have either occurred by a different mechanism than other laterally acquired genes and/or have subsequently undergone rearrangement in the genome.
Therefore, we depicted the trichopteran order in gray and indicate that the holocentric transition could have either occurred in the common ancestor of Trichoptera and Lepidoptera or on the lepidopteran lineage ('Materials and methods').
Interestingly, the configuration of these latter deletions were identical in these two genomes, suggesting that it had either occurred prior to the separation of these bacteria into two distinct species or involved similar processes.
The sex chromosomes of Spinacia oleracea and Asparagus officinalis evolved very recently, and recombination suppression has either not occurred, or is confined to regions too small to be detected cytologically (Telgmann-Rauber et al. 2007; Onodera et al. 2011).
Skeptics such as James Randi suggest that his reputation as a prophet is largely manufactured by modern-day supporters who fit his words to events that have either already occurred or are so imminent as to be inevitable, a process sometimes known as "retroactive clairvoyance" (postdiction).
Trade-offs are central concepts in evolutionary biology [13], [14], and a large body of studies has either indicated trade-offs occurring frequently amongst natural and semi-natural populations [15] [17], or considered them theoretically [3], [18], [19].
These animal models have either naturally occurring or induced 5′ mutations which disrupt an essential coiled-coil domain, resulting in loss of protein function, consecutive loss of Hh signaling and early embryonic lethality.
Among the 60 developing countries where 94percentt of the child deaths occurred, 20 have either made no progress or have regressed, while 24 have cut death rates of children under 5 by at least 20percentt.
In the 10% of mice in which relapse occurred, tumors had either escaped conditional regulation by the tetracycline system or had undergone a presumed secondary genetic event.
