Dominant: A genetic trait is considered dominant if it is expressed in a person who has only one copy of that gene. (In genetic terms, a dominant trait is one that is phenotypically expressed in heterozygotes).
David William Donald Cameron (/ Ë k Ã¦ m r É n, - m É r É n /; born 9 October 1966) is a British politician who was Prime Minister of the United Kingdom from 2010 to 2016 and Leader of the Conservative Party from 2005 to 2016.
Share. Jack Layton, Leader of the New Democratic Party of Canada, led the party to Official Opposition status for the first time in history in the 2011 Canadian federal election.earn about the political careers of federal NDP leaders since the inception of the New Democratic Party of Canada in 1961.