Which of the following statements regarding DNA is false? DNA uses the sugar deoxyribose. DNA uses the nitrogenous base uracil. DNA is a nucleic acid. One DNA molecule can include four different nucleotides in its structure. DNA molecules have a sugar-phosphate backbone.

DNA or the deoxyribose nucleic acid is one of the biomolecules present in the organisms. DNA is a nucleic acid that acts as genetic material in the organisms.

DNA exists as two strands in which each strand is made of the nucleotide. Each nucleotide is made of a 5 -carbon sugar called deoxyribose, four different types of nitrogenous bases namely- adenine, guanine, cytosine, and thymine and a phosphate group.

The sugar and phosphate molecules form the backbone of the DNA structure whereas the nitrogenous bases are present inside the backbone.

Since the uracil is not present in the DNA molecule but is found in the RNA molecule, therefore, is the correct answer.

samueladesida43 samueladesida43 · Answer 2 · 2021-12-09T10:34:41+01:00

The statement that is false regarding DNA is that DNA uses the nitrogenous base uracil.

DNA:

DNA, meaning deoxyribonucleic acid is a biological molecule that stores genetic information in living cells. It is one of the two types of nucleic acids (other being RNA).

DNA is a polymer made up of monomeric units called nucleotides. There are four different nucleotides that make up the DNA molecule: Adenine (A), Cytosine (C), Guanine (G), and Thymine (T).

Each nucleotide subunit is composed of a pentose sugar, phosphate group and nitrogenous base, hence, DNA molecules have a sugar-phosphate backbone.

This means that the statement that is false regarding DNA is that DNA uses the nitrogenous base uracil.

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