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.
As labor proceeds, the contractions occur more frequently and last longer. â¢Toward the end of labor, the contractions may occur every 2 minutes and last almost 2 minutes. During the final part,the contractions increase to their greatest intensity, a period known as transition. Click Card to flip.