They are inherited characteristics that are passed from one generation to the next and are located on chromosomes., genes, Adenine in DNA always equals the amount of thymine, and the amount of guanine equals the amount of cytosine., Chargaff's Rules, Watson and Crick determined that DNA looks like this., a long, twisted ladder, The model created by Watson and Crick eventually helped explain how __________., DNA is copied and its function, The shape of DNA is referred to as a:, double helix, The width of the DNA ladder matches the combined:, width of the matching bases, The pairing of bases allows the cell to:, replicate, Each base always bonds with:, only one other base, The sequence of CGAC will bond to the sequence of:, guanine, cytosine, thymine, and guanine, DNA is copied:, every time a cell divides, The job of unwinding, copying, and rewinding the DNA within a cell is done by:, proteins, When two DNA molecules are formed, half of each of the molecule is old DNA, and:, half is new DNA, DNA must be able to give instructions for building and maintaining cells, and:, be able to be copied each time a cell divides, This is the process Rosalind Franklin used to make images of DNA molecules:, X-ray diffraction, Nucleotides consist of:, sugar, phosphates, and a base, Each base of a nucleotide:, has a different base.

DNA Section 1

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