和分母因素在母体基因和合子基因的相互作用中,X-染色体基因产物的作用 称为分子因素 ( numerator elements ) 而常染色体基因产物的作用称为分母因素( denominator elements)雌性(XX)的X-连锁的分子因素是雄性个体(XY)的二倍
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解开涉及学习的遗传因素和分子因素的庞大网络仍然不容易。
Still, untangling the vast web of genetic and molecular factors involved in learning will not be easy.
其它促成催化的因素来自结合水分子,金属离子或其它因子。
Additional contributions to catalysis can come from bound water molecules, metal ions, or other factors.
包括来自于“底层”的物理和化学因素,也就是分子间的作用,影响了上层的基因、染色体、细胞、组织和生物体。
They include constraints imposed "from below" by physics and chemistry, that is, from molecular interactions upwards, through genes, chromosomes, cells, tissues and organisms.
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