Example of a human karyotype: 23 pairs of homologous chromosomes (one pair is the homologous 'sex' chromosomes - in this case X and Y = a boy) III. Meiosis reduces chromosome number from diploid (2n) to haploid (n) 1 diploid cell (2n) cell becomes 4 haploid (n) germ cells (eggs or sperm).
closed plan. noun. 1. an office floor plan consisting of fully enclosed office spaces. Compare open plan.
1. the usually hinged barrier, usually of wood, which closes the entrance of a room, house etc. He knocked loudly on the door. 2. a means of achieving something. the door to success. a knob-shaped handle for opening and closing a door. a mat kept in front of the door for people to wipe their feet on. a raised step just outside the door of a house.