UV light does not just create repairable dimers in DNA bases, it can and does rip DNA apart. Enough exposure would cause more than enough irreparable damage to kill the cell and 99% of the cell being destroyed is certainly not salvageable.
Regional service for the airline is served by Delta Connection. Delta typically charges a fee for all checked bags on domestic flights, with most international flights having an allowance of one or two free checked bags per passenger, depending on destination.
1. Understand the carry-on limits for Delta baggage. The airline allows one Delta carry-on baggage that must be no bigger than 22 x 14 x 9 inches. There is NO weight restriction for most routes with your carry-on so you can be strategic about how you pack. Avoid packing any bulky items, and use accessories to your advantage.