Computer-aided Design And Drafting (CADD) Definition - What does Computer-aided Design And Drafting (CADD) mean? Computer aided design and drafting (CADD) is a subfield of engineering which deals with the design and drafting of objects and materials through the use of specialized software that visualizes designs as modular 3D computer models.
gamete. Gametes are an organism's reproductive cells. They are also referred to as sex cells. Female gametes are called ova or egg cells, and male gametes are called sperm. Gametes are haploid cells, and each cell carries only one copy of each chromosome. These reproductive cells are produced through a type of cell division called meiosis.
Gametes are haploid. They have 23 chromosomes - not pairs, just one of each. BUT - they don't just randomly inherit one of the chromosomes - there's a mixing process, where bits of the maternal and paternal chromosomes are swapped around.