DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules. Replication is an essential process because, whenever a cell divides, the two new daughter cells must contain the same genetic information, or DNA, as the parent cell.
You are watching a horror movie. The music changes to the familiar tune you recognize as a prelude to. danger. You tense up, your heart rate increases, your breathing becomes shallow, your mouth is dry.
Some women who use hormone therapy to counteract menopausal symptoms (such as hot flashes and vaginal dryness) also complain of heart palpitations. Other possible causes include anxiety and stress, lack of sleep, and exercising too strenuously.