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What type of bond connects the sugar and phosphate groups in the DNA backbone?

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Question: What type of bond connects the sugar and phosphate groups in the DNA backbone?

Options:

  1. Hydrogen bond
  2. Ionic bond
  3. Covalent bond
  4. Peptide bond

Correct Answer: Covalent bond

Solution: 

Covalent bonds connect the sugar and phosphate groups in the DNA backbone, providing structural stability.

What type of bond connects the sugar and phosphate groups in the DNA backbone?

Practice Questions

Q1
What type of bond connects the sugar and phosphate groups in the DNA backbone?
  1. Hydrogen bond
  2. Ionic bond
  3. Covalent bond
  4. Peptide bond

Questions & Step-by-Step Solutions

What type of bond connects the sugar and phosphate groups in the DNA backbone?
Correct Answer: Covalent bonds
  • Step 1: Understand that DNA has a structure called a backbone.
  • Step 2: Know that the backbone of DNA is made up of sugar and phosphate groups.
  • Step 3: Learn that the sugar in DNA is called deoxyribose.
  • Step 4: Recognize that the sugar and phosphate groups are connected to each other.
  • Step 5: Identify the type of connection between the sugar and phosphate groups.
  • Step 6: Discover that this connection is made by covalent bonds.
  • Step 7: Conclude that covalent bonds provide stability to the DNA structure.
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