The simian crease is one of the listed signs in Down Syndrome which would imply there's some genetic factor at play. My eldest daughter has a simian crease on one hand and the other hand is 'normal'.
Sovereign definition, a monarch; a king, queen, or other supreme ruler. See more.
dominion. 1. The right and power to command, decide, rule, or judge: authority, command, control, domination, jurisdiction, mastery, might, power, prerogative, sovereignty, sway.Informal: say-so.2. The fact of possessing or the legal right to possess something: ownership, possession, proprietorship, title. 3.ominion. 1. The right and power to command, decide, rule, or judge: authority, command, control, domination, jurisdiction, mastery, might, power, prerogative, sovereignty, sway. Informal: say-so. 2. The fact of possessing or the legal right to possess something: ownership, possession, proprietorship, title.