DNA Replication by enzymes that copy DNA for chromosomes in the new cell after cell division (mitosis)
A double Helix.
[double stranded] 2'Dna REPLICATION.
DNA replication
DNA strands must unwind and the two strands must separate prior to transcription beginning. Once transcription is complete, the two strands join back together.
The answer depends on the circumstances! In a cell, during DNA replication or during translation, the two strands in a DNA molecule are separated by enzymes called topoisomerases and helicases. In a solution, the two strands of a DNA molecule can be separated by being heated. This is called DNA melting. See: http://en.wikipedia.org/wiki/DNA http://en.wikipedia.org/wiki/DNA_melting
a DNA molecule has two paired strands. ~
a double helix- apex
During the processes of DNA replication and transcription, the two strands of the DNA molecule separate, or "unzip", so that the two strands can be copied by DNA nucleotides, or the anti-sense strand of DNA can be transcribed by mRNA.
DNA strands must unwind and the two strands must separate prior to transcription beginning. Once transcription is complete, the two strands join back together.
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.
DNA is double-stranded, unless it has been denatured, then the two strands separate, forming two single-stranded molecules.
The answer depends on the circumstances! In a cell, during DNA replication or during translation, the two strands in a DNA molecule are separated by enzymes called topoisomerases and helicases. In a solution, the two strands of a DNA molecule can be separated by being heated. This is called DNA melting. See: http://en.wikipedia.org/wiki/DNA http://en.wikipedia.org/wiki/DNA_melting
The two strands of DNA are connected by hydrogen bonds.
The two identical strands of a chromosome are called chromatids. DNA replication occurs in the interphase stage of the cell cycle.
The strand used as a template for mRNA during transcription is called the antisense strand. The DNA strand not used as a template is called the sense strand.Read more: What_are_the_two_DNA_strands
Heat anneals DNA strand i.e. separate two strands of DNA to build anti-codon to desired DNA strand
Replication Fork
in order to replicate to create more DNA. this is required in order to make more cells
a DNA molecule has two paired strands. ~
h bond