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One mRNA strand is made.
during nucleic acid reading and replication the double strand of DNA must be unwound and opened up (unzipped) at the same time. In the polymerase complex this function is …achieved by the enzyme helicase.
Transcription and replication. According to evolution that is. Is this question asking at the begininning of time, or an overall in-body DNA question? Life as we know it canno…t replicate itself without being in a living organism. RNA polymerase reads and unzips the double helix of DNA to create RNA in which leads on to creating protiens... yahda yahda yahda. According to the scientific evidence on the original formation of DNA... somehow the necessary compounds for creating it orginated out of a slew in the hot early times of earth over 3000 million years ago. This also could have been helped by on or two meteroids hitting earth with some valuable new atoms or compounds. And out of these compounds, there arrived DNA. Developed and replicated there in the mud with no ATP energy... and started to move on to develope bacteria, which much later evolved into us. Do I believe this? No I certainly do not. I know that God created the earth and that our bodies and everything organism out there... is made up out of; Nitrogen, Oxygen, Carbon, and Hydrogen. What are the 4 main components of dirt? Nitrogen, Oxygen, Carbon, and Hydrogen. Isn't it lovely what science has figured out for us?
The heat breaks the hydrogen bonds that hold the nitrogenous bases together in the centre of the DNA molecule. However, the covalent bonds between the phosphate and deoxyribos…e sugar are not affected.
Helicase unzips the double stranded DNA so that it can be replicated.
What unzips DNA strand is a particular protein called Helicase. Helicase unwinds DNA's double helix at the replication fork.
This is not a proper question. "The DNA molecule ________, or unzips, into two strands."
During DNA replication.
So it can replicate. One strand is original and the other side is new.
The hydrogen bonds connecting the nucleotide bases are broken so right down the center is where is is split for DNA Replication or Transcription.
So that the DNA copies -one each- may be passed on to the daughter Cells.
DNA is unzipped for replication of DNA or transcription of mRNA.
That would be helicase, though there is no diagram below.