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Down: 1) Lagging Strand - 3’ to 5’ Carbon, must be fragmented to replicate backwards, replicates slower 2) Pyrimidines - One ring - Cytosine and Thymine bases 3) Crick & Watson - responsible for the discovery of the 3D DNA model5) Enzyme - protein molecules that act as catalysts to speed up reactions to build up or break down items 6) Nucleotide - monomer of Nucleic Acid (DNA) 7) Leading Strand - 5’ to 3’ Carbon, can replicate in order, replicates faster 10) Antiparallel DNA Strands - DNA strands do not run in the same direction, opposite directions 15) Erwin Chargaff - discovered the same four bases were found in the DNA of all organisms 16) Helicase - unzipping enzyme, breaks H bonds and opens up the double helix 17) DNA Backbone - Phosphate and Sugar of the nucleotide 19) Purines - Two rings - Adenine and Guanine bases Across: 4) Semi Conservative Replication - one original and one new DNA strand bonded together to form a new double helix 8) Double Helix - biological term for the shape of a twisted DNA molecule 9) DNA Polymerase - Builder, replicates DNA molecules - can only work in the 5’ to 3’ direction 11) Gene Regulation- the process of activating genes or turning them “on” or “off” 12) 4 Bases - Adenine & Thymine And Guanine & Cystine 13) Deoxyribose - Sugar molecule in DNA 14) DNA Rung - made up of the base pair, multiple rungs in different orders make up different genes 18) Point of Origin - where helicase begins to unzip the DNA 20) Ligase - Glues DNA fragments together 21) Primase - makes the primer so DNA Polymerase knows where to go to work first 22) Nitrogen Base - makes up part of the nucleotide and is made up of one or two rings 23)  Lagging strand fragments of DNA
 

 

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