Task: Text Categorization
Input (English): Metabolism of this molecule is disturbed by defects in WRN protein. This molecule is the subject of a signal amplification technique using its "branched" form. Bloom syndrome protein is an ATP-dependent enzyme that acts primarily on this molecule. A phenomenon exhibited by this molecule is described by quantities called "writhe" and "twist." This molecule's structures include its Z form and A form, but its standard structure is its B form. The amount of this molecule in a cell determines the C-value. This molecule exhibits supercoiling, and it is wound around octamers of proteins called histones. For 10 points, name this molecule packaged in the nucleus whose double helix structure was discovered by Watson and Crick.
Output (English): Science