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.
... urethral sphincter is the skeletal muscle that allows voluntary control over urination.
In the human female, the urethra is about 1-1.5 inches (25-38 mm) long and ...