What is the genetic apparatus of a cell, where is it located in the cells of plants and animals?

The genetic apparatus of a cell is a set of genes (carriers of information about protein synthesis at a given time, encoded as a sequence of complementary nucleotides), which are located mainly in the nucleus of a plant or animal cell. Complementary nucleotides fold into a double helix – DNA, which is wound in the phases of division into the histone protein and forms chromosomes. Two-membrane mitochondria and plastids also have their own genetic apparatus in the cell, which gives reason to say that they were probably once independent cells that now exist in close synthesis together.