1. Heterochromosomes determine the sex of an individual in many species, including humans.
异染色体在很多物种，包括人类中决定了个体的性别。

2. In some organisms, such as fruit flies, the presence of heterochromosomes can result in unique color patterns.
在一些生物，如果蝇中，异型染色体的存在可以导致独特的颜色图案。