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. 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.
What/Why: The week of April 11-17 is DC Spa Week. Spas throughout Washington are offering $50 deals on massage, facials, manicure/pedicures, waxing, acupuncture, and other services. You can put your zip code into the Spa Week web site for a list of spas and $50 deals. 1.
Both museums are open 10 a.m. to 5:30 p.m. and are free; (202) 357-2700. In an encore to a popular summer event, the city's top restaurants will offer three-course prix fixe lunches at $20.04 and dinners at $30.04 from Jan. 12 to 18 as part of DC Restaurant Week. The lunches are a wonderful way to sample classic Washington restaurants, but diners should make reservations early.