Which of the following observations or predictions is accepted about the human genome?
a. The human genome is incredibly complex, with approximately 20,000-25,000 protein-coding genes.
b. The human genome contains a significant amount of non-coding DNA, which plays a role in gene regulation and other cellular processes.
c. The human genome is highly variable, with millions of genetic differences between individuals that contribute to traits, susceptibility to diseases, and other biological differences.
d. The human genome is still not fully understood, and ongoing research continues to reveal new layers of complexity and functionality.