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.
closed panel: A dental insurance benefit plan which requires the eligible patients to receive their dental care from a specific dentist who has contractually agreed to the terms, payments and benefits of the plan. Usually only a limited number of dentists in an area are allowed to participate in these types of plans.