heterochromatic gene的用法和樣例：
例句
- And he expects also to study the pig gene for myelin, to see how similar it is to the human one.
還希望通過研究豬髓鞘質基因來觀察其與人類的相似性。 - When neurons are engineered to express the halorhodopsin gene, the researchers can inhibit their actiity by shining yellow light on them.
當神經元攜帶上嗜鹽菌紫質基因，研究員就可以通過明亮的黃光照射來抑制他們的活動。
