Pretty sure it’s Trace fossil hope that helps
The right option is; to identify the 3 billion genes that comprise the human genome
The Genome Project (HGP) is the world’s largest international scientific research project that has the goal of mapping the nucleotides (more than 3 billion), that makes up the whole human genome, and recognizing the structure and functions of the entire genes. Several organizations that contributed to the project include; National Human Genome Research Institute (NHGRI) of Health, international partners in France, United Kingdom, the U.S. Department of Energy, and many universities and laboratories in the United States.
I know C they may change shape when they bind substrates
Chromosomes in the nucleus of the cell are bearers of genes
