In eukaryotes, the accessibility of large regions of DNA can depend on its chromatin structure, which can be altered as a result of histone modifications directed by DNA methylation, ncRNA, or DNA-binding protein. Hence these modifications may up or down regulate the expression of a gene. Some of these modifications that regulate gene expression are inheritable and are referred to as epigenetic regulation.

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gene expression may be regulated by altering chromatin structure?

A: yes

When entering into force in 1994, the EEA parties were 17 states and two European Communities: the European Community, which was later absorbed into the EU's wider framework, and the now defunct European Coal and Steel Community. Membership has grown to 31 states as of 2016: 28 EU member states, as well as three of the four member states of the EFTA (Iceland, Liechtenstein and Norway). The Agreement is applied provisionally with respect to Croatia--the remaining and most recent EU member state--pending ratification of its accession by all EEA parties. One EFTA member, Switzerland, has not joined the EEA, but has a series of bilateral agreements with the EU which allow it also to participate in the internal market.

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is switzerland a member of the european economic area?

A: no

The system was introduced after George Washington had announced his retirement upon the end of his second term, when the Democratic-Republican Party, and Federalist Party began contesting elections on a partisan basis. Both parties may have held informal caucuses in 1796 to try to decide on their candidates. After the disorganized electoral voting of 1796, both parties held formal caucuses in 1800 that selected their respective presidential candidates (prior to the ratification of the 12th Amendment in 1804 each party ran two presidential candidates). The Federalists secretly held their caucus in early May, but later made their ticket of President John Adams and Charles Cotesworth Pinckney public. The Democratic-Republicans also secretly met in May, and agreed to equally support Thomas Jefferson and Aaron Burr for president. The Federalists did not hold another caucus after 1800.

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originally presidential candidates were selected by party caucuses in congress?

A: yes

Robert Horry and John Salley are the only players to have won championships with three different teams. Horry won seven championships: two with the Houston Rockets, three with the Los Angeles Lakers and another two with San Antonio Spurs. Salley's four NBA titles came via two championships with the Detroit Pistons and one each with the Bulls and the Lakers. Horry is also the only non-Celtic to win more than 6 times. Frank Saul and Steve Kerr are the only players to win two championships with two different teams in consecutive seasons. Saul won consecutive championships with the Rochester Royals and the Minneapolis Lakers in the 1950s, and Kerr won consecutive championships with the Bulls and the Spurs in the 1990s. Both Saul and Kerr were NBA champions four years in a row, each having participated in three-peats, Saul with the Lakers and Kerr with the Bulls.

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has any nba player ever won 3 championships with 3 different teams?

A:
yes