«Inherited genetic factors may have a cumulative effect; therefore, the disease would only appear if
a certain number of variants are inherited,» explain researchers.
The research shows that children need to inherit
a certain number of variants in order to develop autism.
A certain number of these variants can be considered as coming from only a few centers of diffusion.
Not exact matches
In this study, Teitell and his team sought to determine copy
number variants (CNVs), or differences in the
numbers of certain genes, in two embryonic stem cell lines.
In addition, some
variants are offered to retailers who order a
certain number of comics, and since those
variants tend to be fairly rare, retailers often sell them for more than the cover price.