Mendeliangene is not a real physical entity but an abstraction or symbol.
孟德尔式的基因并不是真正的实体，而是抽象概念或者是说明性的符号。
2
The allelic variations at QTL has similar molecular basis to the variations at simple Mendelian loci and the basis is that gene expressions or protein functions vary.
QTL等位基因变异与孟德尔基因变异具有类似的分子基础，即基因表达或蛋白质功能发生改变。
3
Conclusion the foreign gene (human Cathepsin K gene) has already integrated into mouse chromosome, and it can inherit in accordance with Mendelian inheritance.