A gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people.Mutations range in size; they can affect anywhere from a single DNA building block (base pair) to a large segment of a chromosome that includes multiple genes. gene mutation is a permanent alteration in the DNA sequence that makes up a gene, such that the sequence differs from what is found in most people.
True labor contractions last more than 30 seconds at the onset and get progressively longer, up to 60 seconds, whereas false labor contractions vary in length and intensity.
You may need to concentrate as the contractions are getting longer, stronger and closer together. In active labor, contractions last about one minute and are about two to five minutes apart. Active labor lasts about three to five hours and the cervix dilates from 4 to 7 cm. The most intense phase of labor is transition. Contractions are only about a minute apart and may last up to 90 seconds. You may experience nausea, vomiting, shaking and become very discouraged as your cervix opens from 8 to 10 cm.