What is dNA?

DNA is deoxyribonucleic acid, the molecular basis of heredity, present in chromosomes; it is the largest biologically active molecule presently known and is responsible for the replication of the key substances of life, proteins and nucleic acid; it consists of two long chains of alternate sugar and phosphate groups twisted into a double helix.
antisense DNA See antisense strand, under strand.
genomic DNA The chromosomal DNA sequence of a gene, including the DNA sequence of coding and noncoding regions. Also applies to DNA that has been isolated directly from cells or chromosomes or cloned copies of all or part of such DNA.
mitochondrial DNA The unique DNA packed in the circular chromosome of mitochondria; it is present in numerous copies in each cell and is maternally transmitted to the offspring due to the abundance of mitochondria in the ovum.
recombinant DNA Biologically active DNA that has been formed by the in vitro
joining of segments of DNA from different species.
Z DNA A form of DNA that is twisted in the opposite direction from the usual DNA
spiral; while its detailed function is not fully known, Z DNA may play a role in controlling gene expression.

DNA Дезоксирибонуклеиновая кислота…

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