"Centrosomes" Natural Recordings by Native Speakers
Centrosomes are small organelles found in the cytoplasm of cells, near the nucleus. They are composed of a pair of centrioles, which are small cylindrical structures of microtubules. Centrosomes play a crucial role in the process of cell division, also known as mitosis, by forming the spindle fibers that separate the chromosomes during cell division. They are also involved in the formation of cilia and flagella, which are hair-like structures that provide cellular movement. In addition, centrosomes have been implicated in the regulation of cell cycle progression, migration, and signaling pathways.
Centrosomes: 5 Usage Examples
Centromeres are the regions on a chromosome where the sister chromatids are attached to each other. They are crucial for the separation of chromosomes during cell division, particularly during mitosis and meiosis. The centromere is typically located near the center of the chromosome and is bounded by repeated DNA sequences. It acts as the attachment site for the spindle fibers during cell division, allowing the chromosomes to be pulled apart and move to opposite poles of the cell.
The word "cents" refers to small units of money, equal to one hundredth of a dollar in the United States.