Stalking.] [AS. staelcan, stealcian to go slowly; cf. stealc high, elevated, Dan. stalke to stalk; probably akin to 1st stalk.] 1. To walk slowly and cautiously; to walk in a stealthy, noiseless manner; -- sometimes used with a reflexive pronoun. --Shak.
In the case of hemochromatosis, it is believed that a single individual in Europe, 60 to 70 generations ago, was the sole origin of most of the hemochromatosis seen in the world today.
The endosymbiosis theory postulates that. The mitochondria of eukaryotes evolved from an aerobic bacterium (probably related to the rickettsias) living within an archaeal host cell.