Final answer:
The Human Genome Project found that genetically, all human beings are nearly identical to less than 0.01%. It identified more than 20,000 human genes and provided insights into human biology and genetic diseases. However, the functions of the majority of the genome remain unclear.
Step-by-step explanation:
The Human Genome Project, an international effort that took place from 1990 to 2003, sequenced approximately 99 percent of the human genome. It found that genetically, all human beings are nearly identical to less than 0.01%.
By analyzing the DNA base pairs and mapping the location of the genes, scientists identified more than 20,000 human genes. These genes are responsible for various functions in the body, and their study helps us understand human biology, genetic diseases, and potential cures.
While human beings have approximately 20,000 to 22,000 genes, only about 25 percent of the DNA base pairs make up the genes and their regulatory elements. The rest of the genome is still not fully understood.