1 ZIP+4 ZIP Code Database. 2  Covering every address in the U.S., get the +4 information you need. 3  Canadian Postal Code Database. 4  Get all Canadian Postal Codes and their information in one easy to use database.
Beyond these basic, universal features, eukaryotic genomes vary dramatically in terms of size and gene counts. Even so, genome size and the number of genes present in an organism reveal little about that organism's complexity (Figure 1).ne pg is equivalent to approximately 1 billion base pairs.) Therefore, genome size is clearly not an indicator of the genomic or biological complexity of an organism. Otherwise, humans would have at least as much DNA as the marbled lungfish, although probably much more.
A single copy of all the chromosomes is referred to as the genome. For example, humans have 23 pairs of chromosomes (for a total of 46 individual chromosomes) and the human genome consists of a single copy of each of those 23 chromosomes. Genome size is measured in terms of weight. The more DNA there is, the greater the weight, and the larger the genome.