All that's needed is one cell with the DNA in good shape.
所有要求的条件是只要DNA保持完好的一个细胞。
2
The mathematics of fractals – very complex geometric shapes – is just what the doctor ordered, helping to capture the difference between the shape of a healthy cell and a cancerous one.
In the late 1980s, they discovered that although a linear string of amino acids can fold into its proper three-dimensional shape in a test tube, the protein cannot do this on its own within a cell.