Well basically, it will start to go green and gets really molded. you might see a couple of bugs in the bread.
Oxygen definitely. Hope this helps.
Notice here that the original strand has 6 bases, but the new one only has 5. Therefore, it has to be a deletion. Precisely, the A in the first sequence was deleted, and you can tell, because there should be a U in the fourth spot.
A gene map of the human genome
