They all have 6 in its outer shell because they are all in the same group in the periodic table. Your VERY VERY welcome (:
The paternal (blue) chromosomal and the maternal (pink) chromosome are homologous chromosomes. Following chromosomal replication, the blue chromosome is composed of two identical sister chromatids and the pink chromosome is composed of two identical sister chromatids.
Quick Answer. Homologous chromosomes have the same genes, gene order and approximate length in common. A gene's location is called its loci. For every gene that exists at a certain loci on one homologous chromosome, the same gene exists at the same loci on the other chromosome of the homologous pair. Continue Reading.