The nuclear genomes of most higher eukaryotic organisms are diploid and are characterized ... haploid and carry only a single allele (in this example, alleles A, B and C from the female parent ...

Each chromatid is a full length DNA molecule. The stages outlined in the following example show a cell with a diploid chromosome number of four (two sets of two chromosomes) undergoing cell division.

However, defining the human diploid chromosome number would prove more challenging than investigators initially anticipated. Theophilus Painter was one of the preeminent cytologists of the early ...