DNA Replication

DNA Replication
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  • DNA Replication
  • By Helena Beinhacker
  • DNA replication is the process our cells go through to make copies of DNA in order to divide.
  • First though, we need to understand the structure of DNA...
  • DNA, or deoxyribonucleic acid, is composed of nucleotides arranged in a double helix. These are subunits of DNA composed of a deoxyribose sugar, phosphate, and a nitrogen base.
  • Each nitrogen base has a complementary base pair. Adenine and thymine always bind together, as do cytosine and guanine.
  • Cytosine
  • Adenine
  • Thymine
  • Guanine
  • The bases of DNA are joined together by hydrogen bonding. These bonds are ionic, while the bonds between the sugar and phosphate are covalent.
  • DNA structure is 5 and 3 prime and antiparallel. These terms describe the structure of the phosphate.
  • 5'
  • 3'
  • 3'
  • 5'
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