Humans
The human genome, which contains 3.4 billion base pairs, is the largest sequenced to date. The genome of rice (Oryza sativa) is the largest and most complex fully-sequenced plant genome. It contains over 430 million base pairs and an estimated 46,022 to 55,615 genes. [Science 296(5565):79-92] In contrast, the human genome contains an estimated 23,299 genes. Genome size is independent of organismal complexity.
The water flea species Daphnia pulex is barely more than a millimeter long, is completely translucent, has no clear divisions between their various body parts...and has the largest genome of any animal we've ever encountered. It has an incredible 31,000 genes in its genome, over 8,000 more than humans have. (Feb 2011)
genome
blueprint cell
DNA is found (usually) in each cell of an organism in the nucleus or in an area called a nucleoid.
Genome
order from largest to smallest: gene, genome, chromosome, DNA, gene pool
The human genome, which contains 3.4 billion base pairs, is the largest sequenced to date. The genome of rice (Oryza sativa) is the largest and most complex fully-sequenced plant genome. It contains over 430 million base pairs and an estimated 46,022 to 55,615 genes. [Science 296(5565):79-92] In contrast, the human genome contains an estimated 23,299 genes. Genome size is independent of organismal complexity.
Ok Its Like This::DNAGeneChromosomeNucleusCell
One can download the genome browser from the following sources: UCSC Genome Browser, Broad Institute, GMOD, Source Forge, Open Helix, Artemis Genome Browser Download, 1000 Genomes, to name a few.
The water flea species Daphnia pulex is barely more than a millimeter long, is completely translucent, has no clear divisions between their various body parts...and has the largest genome of any animal we've ever encountered. It has an incredible 31,000 genes in its genome, over 8,000 more than humans have. (Feb 2011)
genome
DNA is a molecule. It is made up of multiple atoms joined together.
Sorangium cellulosum is a soil-dwelling Gram-negative bacteria of the group myxobacteria. It is motile and shows gliding motility. It has an unusually-large genome 12,200,000 base pairs in size. A more recent work sequenced the genome of Sorangium cellulosum So ce56 (a specific strain of the bacterium) and put its size at 13,033,779 base pairs making it the largest bacterial genome sequenced to date.
genome
That depends on the size of the chromosome. We can use the largest and smallest human chromosomes as examples, using size information from the Ensembl genome browser (www.ensembl.org). Human chromosome 1, the largest, is estimated to have 247,249,719 base pairs. That is, the DNA sequence in the chromosome is about 247 million base pairs long. Since DNA is double stranded, that equates to about 494 million nucleotides. The smallest chromosome, 22, on the other hand has 49,691,432 base pairs - about 50 million. Hence it has about 100 million nucleotides.
The genotype, ramie is the largest genome that does not propagate. This means that it does not reproduce. Some plants can also be altered to not reproduce.