Answered

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Which of the following is NOT true about DNA?

A. It has a deoxyribose sugar.
B. It has a double helix.
C. It contains adenine, guanine, cytosine, and uracil.
D. Its bases are complementary to each other.
E. Its bases are held together by hydrogen bonds.

Sagot :

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Final answer:

DNA's structure involves complementary base pairs with specific hydrogen bonding patterns, with one statement about the presence of uracil being incorrect.


Explanation:

DNA (deoxyribonucleic acid) is a double helix molecule containing adenine, guanine, cytosine, and thymine as its four nitrogenous bases, where adenine pairs with thymine and guanine pairs with cytosine.

One of the statements provided, 'contains adenine, guanine, cytosine, and uracil,' is NOT true as DNA does not contain uracil; instead, it contains thymine.

The complementary nature of DNA bases allows adenine to form two hydrogen bonds with thymine and guanine to form three hydrogen bonds with cytosine, which helps stabilize the DNA structure.


Learn more about DNA structure and composition here:

https://brainly.com/question/43480995


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