For Immediate Release: WASHINGTON â Legislation dubbed the Deny Americans the Right to Know, or DARK, Act passed the House of Representatives today, but the fight for a more transparent food industry is only just beginning, EWGâs Scott Faber said following the vote.
By Regina Bailey. Definition: The nucleus is a membrane bound structure that contains the cell's hereditary information and controls the cell's growth and reproduction. It is commonly the most prominent organelle in the cell.The nucleus is surrounded by a structure called the nuclear envelope.This membrane separates the contents of the nucleus from the cytoplasm. The cell's chromosomes are also housed within the nucleus.t is commonly the most prominent organelle in the cell. The nucleus is surrounded by a structure called the nuclear envelope. This membrane separates the contents of the nucleus from the cytoplasm.
Noun. 1. cell nucleus-a part of the cell containing DNA and RNA and responsible for growth and reproduction. karyon, nucleus. cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals.oun. 1. cell nucleus-a part of the cell containing DNA and RNA and responsible for growth and reproduction. karyon, nucleus. cell - (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals.