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Home Q & A Board Biology-Related Homework Help General Biology
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psatana8 psatana8
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6 years ago
In a 3-D double helix model of DNA, the center consists of ____.
 
  a. deoxyribose sugars
  b. hydrogen bonds
  c. nucleotide base pairs
  d. phosphate groups
  e. sugarphosphate backbones

Question 2

Which statement is true of DNAs structure?
 
  a. The hydrogen bonding of cytosine to guanine is an example of complementary base pairing.
  b. In DNA, adenine always base pairs with guanine and cytosine always base pairs with thymine.
  c. Each of the four nucleotides in a DNA molecule has the same nitrogen-containing base.
  d. When adenine base pairs with thymine, they are linked by three hydrogen bonds.
  e. All four bases in DNA can be found in equal quantities.
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ben.kenobi24ben.kenobi24
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