Dark matter played a crucial role in the development of structures in the early universe by seeding the development of galaxies.
In the early universe, shortly after the Big Bang, dark matter clumped together due to its gravitational influence, creating gravitational wells. Ordinary matter, such as gas and dust, was then attracted to these regions of higher density, leading to the formation of galaxies over time. This process laid the groundwork for the large-scale structure of the universe we observe today.
While dark matter does interact with other forms of matter through gravity, it does not directly lead to the formation of quasars or form black holes; rather, it provides the framework that allows these structures to develop later on.