The opposite strand would read TAACTG because the two pairs are A-T and C-G of the nucleic bases.
Global warming. Not reversing it, because that would most likely cause an ice age, but keeping it under control.
This would be called asexual reproduction. Hope this helps!
Answer:
First off, grab a simple magnet and hold it near your precious metal coin. If the coin is even slightly attracted to the magnet, then you know you have a fake on your hand, as metals with contents of iron and steel are the most likely to be attracted