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Chromosomes are made from DNA. Genes are short sections of DNA. Genetically identical cells are produced by a type of cell division called mitosis. In sexual reproduction, a male gamete fuses with a female gamete to produce a new cell.he cellâs nucleus contains chromosomes chromosomes: Rod shaped bodies found in the nucleus of cells that contain genetic information (DNA). made from long DNA molecules. The diagram shows the relationship between the cell, its nucleus, chromosomes in the nucleus, and genes. Nucleus, chromosome and gene. Page: 1  1. 2  2. 3  3.
Eukaryote cells, or cells that contain a nucleus, have DNA in chromosomes in the nucleus of the cell that tells the cell what to do. In biology, the term pliody is used to define the number of sets of chromosomes found within the nucleus of a cell. Different organisms have different number of chromosomes.ukaryote cells, or cells that contain a nucleus, have DNA in chromosomes in the nucleus of the cell that tells the cell what to do. In biology, the term pliody is used to define the number of sets of chromosomes found within the nucleus of a cell. Different organisms have different number of chromosomes.