DNA+Questions+3-4


 * 3&4 of the black Q's**

** A DNA replication, which is copying itself inside a nucleus, happens with the two sides of a DNA molecule separating. The nitrogen bases “unzips” from each other, breaking the hydrogen bonds, stick with another and make two new identical DNA molecules. THe Nitrogen bases stick the way they are supposed to be (Adenine with Thymine, Guanine with Cytosine ). **   **The more specific steps for replicating DNA's is:** ** 1. The protein that binds the DNA goes on the DNA. **  ** 2. Behind helicase "unzips" the DNA in to 2. **  ** 3. The primase gives the side sugar coating to certain rungs (NOT ALL). **  ** 4. The polymerase gives the side coating to the rest of the rungs. **  ** 5. Then the other polymerase goes over the side coatings and makes the sides gone over by **   ** primase and polymerase the same (primase to polymerase-like). **  ** 6. Lastly Ligase fills up the tiny unconnected blank parts of the side coatings (between the ones gone over **   ** by polymerase and primase). **
 * 3.How and why does it copy itself? **

** Genes are factors that control the production of protein in an organism’s cell, carries information and determines the physical traits (like how you look). They are found in the chromosomes, one chromosome can have hundreds to thousands of genes and chromosomes are located in the nucleus of a cell. Both chromosomes and genes are made of DNA's. ** **Information Links:** **[|Genes-MOST INFO. IS ON THE 1ST pg!!]**  **[|DNA replication:D]**
 * 4.What are genes and where are genes found? **