Once the DNA in a cell is replicated, the cell can divide into two cells, each of which has an identical copy of the original DNA. DNA replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
The heart is a vital organ located in the center of the chest with a slight tilt to the left. Using rhythmic muscle contractions, it circulates blood through veins and arteries, which supplies tissues with oxygenated blood and disposes waste.
Where is the heart located in the body exactly? A reader asked us recently: âWhere is the heart locatedâ¦is it on the left side, the right side or the middle of my chest?â Not surprisingly, most of us do not know the answer to that question.