Where does DNA replication come from?

Answer 1

It is currently unknown how DNA originated. It came from RNA but how RNA formed is also unknown.

The study which involves the origin of DNA and RNA through purely naturalistic means is abiogenesis. There are basic ideas about organic molecules formed, but the origin of self-replicating molecules is merely speculation at this point. The question has beguiled scientists for a very long time especially because the odds of a molecule, as complex as a DNA molecule, spontaneously forming on its own is 1 chance in 1040,000

Answer 2

DNA replication is a process to create 2 new DNA molecules by splitting 1 DNA molecule. This occurs when a cell is about to divide and needs its own copy of DNA. The process consists of many different proteins and enzymes. This includes Gyrase, Helicase, Polymerase III, Primase (or RNA Polymerase), SSB's (or Single Stranded Binding Proteins), Ligase and Polymerase I. Each part has its own role for DNA replication to be successful.

Answer 3

DNA does not really 'come' from any cell. Your DNA is the product of the fusion of 50% of your father's DNA and 50% of your mother's DNA (note that due to dominance and recessiveness of alleles, not necessarily 50% of changes will come from each parent). DNA is found in all (with a few exceptions) cells, in the nucleus.

Answer 4

DNA polymerases comes from the grouping of enzymes. It creates DNA molecules from nucleotides and helps in the process of replicating DNA strands.

Answer 5

From the chromosomes which consist of genes and genes consist of alleles which determine the trait.

Answer 6

The discovery of restriction enzymes lead to the possibility of producing recombinant DNA