The entire length of human DNA is about equal to or little less than 6 feet and 6 inches. This length has around 3 billion base pairs, and it is split into 23 chromosomal pairs for a total of 23.
It is equivalent to being able to squeeze 24 miles of thread into a single tennis ball when describing the length of human DNA and its small home in the nucleus of cells. According to the findings of the Human Genome Project, the length of each individual chromosome varies. The number of base pairs that make up an individual chromosome might range anywhere from 50 million to 300 million.
Adenine and thymine or guanine and cytosine may combine to create a base pair in human DNA. Guanine and cytosine can also form base pairs. These pairings are responsible for the creation of the approximately 30,000 genes that are found in the human genome.