The Sequencing of the Human Genome Has Shown Us That

Question

The sequencing of the human genome has shown us that:
A) the number of genes in the human genome is much smaller than previously thought.
B) the number of genes in the human genome is much larger than previously thought.
C) the number of genes in the human genome is about the same number as previously thought.
D) the DNA of humans is much different from that of even our closest nonhuman ancestors.

Accepted Answer

The sequencing of the human genome has revealed that the number of genes in the human genome is much smaller than previously thought. Instead of the estimated 100,000 to 140,000 genes, it is now believed that humans have only about 20,000 to 25,000 genes.