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Question

The two strands of DNA in the double helix is connected by ___________.

A
Covalent bonding
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B
Ionic bonding
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C
Hydrogen bonding
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D
Hydrophobic interactions
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E
Teritary structure
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Solution

The correct option is C Hydrogen bonding
Genetic information is carried in the linear sequence of nucleotides in DNA. Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs.
Hence, C is the correct option.

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