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!
You're more likely to buy. 1  When you lease a car, you are typically capped at 15,000 miles a year. Additional mileage can cost you up to 35 cents per mile. 2  If you like to personalize a car, this investment can be lost on a leased car. 3  If you like the idea of ownership, you are less likely to be happy with the lease option.