chromatin nucleolus

例句：

1. 1.Chromatin is the material that makes up our chromosomes.
   染色质是我们染色体的组成材料。
2. 2. The study of chromatin has led to new insights into gene function.
   对染色质的研究已经揭示了基因功能的新见解。
3. 3. Chromatin is a complex structure that plays a crucial role in DNA replication and repair.
   染色质是一种复杂的结构，在DNA复制和修复过程中起着关键作用。