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.
Checked in baggage limit (weight and number of pieces) for passenger travelling to US? How Delta airlines can track your checked baggage? Can the cabin baggage weight limit be exceeded by 2-3 kgs for international travel (via Emirates flight) ? Do International airlines allow beauty creams in carry on baggage? How much carry-on baggage is permitted in Emirates Airlines for international student travelers?