15 million people were self-employed in 2015, or 10.1 percent of all U.S. workers. Self-employment continues to be an important source of jobs in the United States. In 2015, 15.0 million people, or 10.1 percent of total U.S. employment, were self-employed, including those who had incorporated their businesses and those who had not.
DNA helicase is the enzyme that unwinds the DNA double helix by breaking the hydrogen bonds down the center of the strand. It begins at a site called the origin of replication, and it creates a replication fork by separating the two sides of the parental DNA.
The enzyme used to unzip human DNA (and RNA) is called helicase. There are a few types of helicase such as DNA helicase, RNA helicase, etc.Each type has its own specific role â¦ .he original strand of DNA is unzipped by an enzyme that breaks the  hydrogen bonds between the bases. This process continues until the  entire strand of DNA has been unzipp â¦ ed and copied.