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!
Hereâs my detailed review of the American Express Delta SkyMiles 50,000 mile offer. This is worth at least $500 in travel when you use the âPay with Milesâ feature. Thatâs because each Delta mile is worth 1 cent toward a paid ticket (for fares over $100). 50,000 miles could be worth potentially more if you redeem for award flights.