How Long Do Fleas Live. Flea Life Span. Fleas can live up to a year and a half when they have a food supply, the optimum temperature (70F to 85F), and ideal humidity (70%). In reality though, most live for an average of 2-3 months.
(1) The complete set of genes in an organism. (2) The total genetic content in one set of chromosomes. Supplement. The genome of eukaryotes is contained in a single, haploid set of chromosomes. The genome of bacteria is contained in a single chromosome whereas the genome of viruses is in the DNA or RNA. The human genome is made up of approximately 35000 genes, or three billion chemical base pairs. Word origin: a portmanteau of the words gene and chromosome.
For a non-technical introduction to the topic, see Introduction to genetics. The human genome is the complete set of nucleic acid sequence for humans (Homo sapiens), encoded as DNA within the 23 chromosome pairs in cell nuclei and in a small DNA molecule found within individual mitochondria. Human genomes include both protein-coding DNA genes and noncoding DNA.