In a double helix, the two strands of DNA are held together by which type of bon

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Question: In a double helix, the two strands of DNA are held together by which type of bond?

Options:

Correct Answer: Hydrogen bond

Solution:

Hydrogen bonds between complementary nitrogenous bases hold the two strands of the DNA double helix together.

In a double helix, the two strands of DNA are held together by which type of bond?

In a double helix, the two strands of DNA are held together by which type of bond?

Correct Answer: Hydrogen bonds

Step 1: Understand that DNA has two strands that twist together to form a shape called a double helix.
Step 2: Know that each strand of DNA is made up of smaller units called nucleotides.
Step 3: Each nucleotide contains a nitrogenous base, which can be one of four types: adenine (A), thymine (T), cytosine (C), or guanine (G).
Step 4: Realize that in the double helix, certain bases pair together: adenine pairs with thymine, and cytosine pairs with guanine.
Step 5: Learn that the connection between these paired bases is made by weak bonds called hydrogen bonds.
Step 6: Conclude that these hydrogen bonds between the complementary nitrogenous bases are what hold the two strands of the DNA double helix together.

Hydrogen Bonds – Hydrogen bonds are weak interactions that occur between complementary nitrogenous bases (adenine-thymine and guanine-cytosine) in the DNA double helix, stabilizing the structure.