DNA is made up of two strands and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semiconservative replication.Cellular proofreading and error-checking mechanisms ensure near perfect fidelity for DNA replication.NA polymerase adds a new strand of DNA by extending the 3' end of an existing nucleotide chain, adding new nucleotides matched to the template strand one at a time via the creation of phosphodiester bonds.
He made his first recordings with that band in 1923. In 1929 Armstrong appeared on Broadway in Hot Chocolates, in which he introduced Fats Waller 's Ain't Misbehavin', his first popular song hit.
Louis Armstrong, ca. 1956. Obvious to pop fans, but not always recognized by the jazz community, Louis Armstrong left not one but two great legacies in American music. His trumpet defined the role of the jazz soloist and revolutionized jazz itself, but his singing has been every bit as influential. Armstrong probably began singing well before he ever picked up a horn, but he wasn't recognized as a singer until long after establishing himself as an instrumentalist.