cDNA is short for coding DNA. It is the DNA sequence matching the splicedmRNA, that is, the exons of an eukaryoticgene. In prokaryotes, the cDNA matches the primary mRNA transcript, as there are no exons or introns.
... formula
The quadratic formula expresses the explicit solution(s) x to the quadratic equation
<math>ax^2+bx+c=0</math>
in terms of the coefficients a, b ...