This occurs during the process of DNA replication
So that the DNA copies -one each- may be passed on to the daughter Cells.
DNA helicase "unzip," or separate, a strand of DNA at positions called origins. This means that the hydrogen bonds between complementary base pairs are removed (DNA is double stranded!). When they separate double-stranded DNA into single strands, it allows each strand to be copied (replication). DNA helicases use the energy stored in a molecule called ATP to break the bonds, which serves as the energy currency of cells.
4000: 2500: | 2000: 400: | (the amount of strands represents the size of the DNA strands)
They are always six base pairs long.
homozygous
DNA
is DAN have to reprice , the DAN molecule unzips of the base pairs
true
DNA helicase "unzip," or separate, a strand of DNA at positions called origins. This means that the hydrogen bonds between complementary base pairs are removed (DNA is double stranded!). When they separate double-stranded DNA into single strands, it allows each strand to be copied (replication). DNA helicases use the energy stored in a molecule called ATP to break the bonds, which serves as the energy currency of cells.
4000: 2500: | 2000: 400: | (the amount of strands represents the size of the DNA strands)
They are always six base pairs long.
base pairs
homozygous
In drawings of DNA the lines connecting the two strands represent base pairings. DNA is made up of four base pairs. These four pair up A-T and C-G exclusively.
There will be two pairs. It is possible for all four angles to be identical.
Homologous pairs
The two strands of DNA are held together by hydrogen bonds between the nitrogen base pairs.
DNA strands are held together by hydrogen bonds.