On March 31, 2022, the Telomere-to-Telomere (T2T) consortium announced that they it had filled in the remaining gaps and produced the first truly complete human genome sequence.

I also recommend looking up epigenetic research and the studies on gene expression. It's extremely interesting.

https://www.genome.gov/about-genomics/educational-resources/fact-sheets/human-genome-project#:~:text=On%20March%2031%2C%202022%2C%20the,truly%20complete%20human%20genome%20sequence.