Each person normally has one pair of sex chromosomes in each cell. Females have two X chromosomes, while males have one X and one Y chromosome. Early in embryonic development in females, one of the two X chromosomes is randomly and permanently inactivated in cells other than egg cells.
Lesson Summary. You should now understand that DNA helicase has a very important job to do. It is responsible for opening up our DNA to allow for replication as well as transcription of our DNA. A DNA helicase is an enzyme that functions by melting the hydrogen bonds that hold the DNA into the double helix structure.hat is, until they meet DNA helicase. In order for DNA polymerase (in replication) or RNA polymerase (in transcription) to see the nucleotide bases that are to be used as a template, these hydrogen bonds must be broken to expose the much-needed the nucleotide bases.
Helicase and RNS polymerase are used in the nucleus. The helicase enzyme is used to unzip the Dna strand in order for the RNA polymerase to copy the genetic code from the Dn â¦ a strand and copy it to the newly formed mRNA strand.1 person found this useful. 1  An Overview of the Enzyme Presoak Stains are simply a natural part of life.he helicase enzyme is used to unzip the Dna strand in order for the RNA polymerase to copy the genetic code from the Dn â¦ a strand and copy it to the newly formed mRNA strand. 1 person found this useful.