7. When one DNA molecule is replicated, the second molecule is identical or nearly identical to the first DNA molecule. Why does this occur? *
To allow the cell to divide into new two cells with identical copies of DNA
To link enzymes
To make different strands of DNA
To make mistakes or mutations

the answer is d.) potassium

ok whats the question if not i cannot you i need question and need a thing to answer

on passing the small ampere of electric current through the tube made of ar and hg of cfl generates uv rays which excites the fluorescent and thus emits the high radiation by consumption of just 5- 12 w in comparison to incandescent light which requires more power such as around 40 - 55 w to lighten.

moreover the life span of fluorescent or cfl is around 8000 h whereas the life span of incandescent is around 1200 h

hence, the building installed with incandescent lights bears more electricity bill.