The labeled nucleotides were incorporated into growing DNA molecules only during ... The study of DNA replication started almost as soon as the structure of DNA was elucidated, and it continues ...

DNA is a complex molecule that consists of two strands coiled around each other to form a double helix structure. Comparison of a single ... functioning and survival of all living organisms. DNA ...

Watson and Crick's discovery of DNA structure in 1953 revealed a possible mechanism for DNA replication ... studies that had relied on isotope labels as a way to differentiate between parental ...