The answer to the question is Jamnapari
The double helix is a description of the molecular shape of a double-stranded DNA molecule. In 1953, Francis Crick and James Watson first described the molecular structure of DNA, which they called a "double helix," in the journal Nature.
<span>Dense connective tissue</span>
C Chromosomes break at centromeres,and sister chromatids move to opposite ends of the cell.