Often different genes can interact in a way that influences the same trait. In the Blue-eyed Mary (Omphalodes verna), for example, there exists a gene with alleles that determine the color of flowers: blue or magenta. Another gene, however, controls whether the flowers have color at all or are white.
The regular price of buying miles from American is about 3.17 cents per mile ($29.50 per 1,000 miles plus a 7.5% Federal Excise Tax) â before a $30 Processing Charge per purchase â but with the maximum bonus offer, itâll actually drop your price down to just 2.02 cents per mile!
Finally, you can also buy a full Admirals Club membership with your AAdvantage miles. Weâre not big fans of this approach as your miles can save you more money if you use them for flights, but these are the rates for new members and renewals: Base Member: 80,000 new / 70,000 renewal.