THE MOLECULAR BASIS OF INHERITANCE
DNA MAKES RNA MAKES PROTEIN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Nitrogen bases are held together by-
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Nitrogen bonds
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Carbon bonds
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Hydrogen bonds
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Amino Acids
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Explanation:
Detailed explanation-1: -Hydrogen bond (H-bond) binds the nitrogen bases between the two strands of DNA. There are two H-bonds between A and T; three H-bonds between G and C.
Detailed explanation-2: -The two nitrogenous bases are held together by three hydrogen bonds. The first hydrogen bond is found between Oxygen atom of the keto group at C-2 of cytosine and one of the Hydrogen atom of the amino group at C-2 of guanine.
Detailed explanation-3: -The hydrogen bonds between the nitrogenous base pairs of DNA are strong dipole-dipole attractions. They hold the two strands of DNA together.
There is 1 question to complete.