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Here Is a DNA Molecule Which of the Following Make up the Part Labeled A? Choose 2 Answers: Guanine D Phosphate Group D Ribose

Question

Here is a DNA molecule Which of the following make up the part labeled A? Choose 2 answers: Guanine D Phosphate group D Ribose Deoxyribose

Answer

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Answer

The part labeled 'A' in the DNA molecule is made up of Deoxyribose and Phosphate group.

Explanation

## Step 1In the structure of a DNA molecule, the backbone is composed of sugar and phosphate groups. This backbone is what is labeled as 'A' in the given DNA molecule.## Step 2The sugar in DNA is deoxyribose, not ribose. Ribose is found in RNA, not in DNA. Therefore, deoxyribose is part of the backbone labeled as 'A'.## Step 3Guanine is a nitrogenous base, which is a component of the rungs of the DNA ladder, not the backbone labeled as 'A'. Therefore, guanine is not part of the backbone labeled as 'A'.## Step 4The phosphate group is another component of the backbone of the DNA molecule. Therefore, the phosphate group is part of the backbone labeled as 'A'.