The suns pole reversals are tied to its

Cycle of sunspots. I hope this helps! I looked up the answer by the way, so no credit to me lol

cycle of the sunspots

Explanation:  This reversal happens every 11 years and is tied to the sun’s cycle of activity,now near it’s peak. The effects of the reversal will ripple throughout the solar system. Every 11 years ,at the sun’s magnetic polarity reverses itself.

answer; /// i do believe the correct answer is (

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."