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What type of bond holds the two strands of DNA together?
What type of bond holds the two strands of DNA together?
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What type of bond holds the two strands of DNA together?
Ionic bonds
Covalent bonds
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Hydrogen bonds between complementary nitrogenous bases hold the two strands of DNA together.
Questions & Step-by-step Solutions
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Q: What type of bond holds the two strands of DNA together?
Solution:
Hydrogen bonds between complementary nitrogenous bases hold the two strands of DNA together.
Steps: 6
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Step 1: Understand that DNA is made of two strands that twist together to form a double helix.
Step 2: Know that each strand of DNA is made up of smaller units called nucleotides.
Step 3: Recognize that nucleotides contain nitrogenous bases (A, T, C, G).
Step 4: Learn that certain bases pair together: Adenine (A) pairs with Thymine (T), and Cytosine (C) pairs with Guanine (G).
Step 5: Understand that the pairs of bases from each strand are held together by weak attractions called hydrogen bonds.
Step 6: Conclude that these hydrogen bonds between the complementary nitrogenous bases are what hold the two strands of DNA together.
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