classification of dna

The DNA used as a carrier for transferring a fragment of foreign DNA into a suitable host is called vehicle DNA. Two types of DNA are used as vehicles: plasmid DNA and bacteriophage DNA..

The bacteriophages (or phages), are viruses that infect and kill bacteria. Their circular DNA is also suitable for use as a vehicle DNA..

The most significant feature of DNA molecule is its capacity to make its own identical copies. This property is called replication. It occurs regularly during the synthetic phase of the cell cycle, every time a cell divides. During replication, the DNA molecule unwinds itself fr..

The most significant feature of DNA molecule is its capacity to make its own identical copies. This property is called replication. It occurs regularly during the synthetic phase of the cell cycle, every time a cell divides. During replication, the DNA molecule unwinds itself fr..

The structure of the DNA molecule and the arrangement of nitrogenous bases in the two polynucleotide chains, is very well explained by the double helix model proposed by Watson and Crick in 1953. Watson and Crick According to the double helix model, DNA molecule shows the f..

It refers to small fragments formed by breaking a chromosome of an organism with the help of restriction endonucleas..

It is the DNA synthesised on RNA template with the help of the enzyme reverse transcriptase and necessary nucleotides. The DNA strand is isolated from the hybrid RNA-DNA complex by using alkaline phosphatase enzyme. A complementary DNA strand is then synthes..

Artificial Synthesis of DNA on Template - In 1961, Kornberg and his coworkers synthesized DNA from a mixture of deoxyribonucleoside triphosphates, DNA polymerase enzyme, metal ions and a segment of viral DNA functioning as a primer. The synthetic DNA..

In 1961, Kornberg and his coworkers synthesized DNA from a mixture of deoxyribonucleoside triphosphates, DNA polymerase enzyme, metal ions and a segment of viral DNA functioning as a primer. The synthetic DNA showed biological activity. When introduced into b..

Deoxyribose Nucleic Acid (DNA) - With the exception of a few viruses, DNA forms the genetic material in all living organisms. In the prokaryotic cells DNA occurs in the cytoplasm. In the eukaryotic cells it is confined largely to the nucleus and forms the main componen..