It's encoded in either DNA or for many types of viruses, in RNA
yes, but many viruses do not have DNA genome, but RNA genome.
Carsonella ruddi
20
genome
In recent study it has been found that there are about 20,000 to 25,000 genes in our genome.Most of the sequences in our genome does not code for anything. Junk DNA or introns constitute about 90% of our genome.
DNA is found (usually) in each cell of an organism in the nucleus or in an area called a nucleoid.
yes, but many viruses do not have DNA genome, but RNA genome.
About the same 20-30,000 genes, although their genome sizes can be very different.
Carsonella ruddi
No comments
genome
genome
20
genome
DNA (deoxyribonucleic acid) is the 'language' that genes are 'written in'. The DNA in the nucleus composes the genome (complete set of genes) of the organism to which the cell belongs. Thus the human genome is the genome of the DNA within the nucleus of human cells. But DNA, in plants and other photosynthetic eukaryotes, is found composing a completely different genome within the chloroplasts. And in most eukaryotes including animals, plants and fungi, their is also a separate mitochondrial genome composed from DNA in the mitochondria. The theory of endosymbiosis explains the presence of DNA in mitochondria and chloroplasts.
It tells you how many separate pieces of chromatin is found in its genome.
The UCSC Genome website contains the sequencing information for several genomes. Scientist are continuously sequencing different organisms, and this website is a compilation of that information in a usable format.