Multiple Choice
Which of the following choices describes the structure of a nucleotide found in DNA?
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4. Biomolecules
Nucleic Acids
Multiple Choice
Which of the following lists includes all the nitrogenous bases found in RNA?
A
Adenine, Cytosine, Thymine, Uracil
B
Adenine, Guanine, Cytosine, Uracil
C
Adenine, Thymine, Guanine, Uracil
D
Adenine, Guanine, Cytosine, Thymine
Verified step by step guidance1
Step 1: Understand the structure of RNA. RNA (ribonucleic acid) is a nucleic acid composed of a sugar-phosphate backbone and nitrogenous bases. The nitrogenous bases in RNA are purines (Adenine and Guanine) and pyrimidines (Cytosine and Uracil).
Step 2: Recall the difference between RNA and DNA. DNA contains Thymine as a pyrimidine base, while RNA replaces Thymine with Uracil. This is a key distinction between the two molecules.
Step 3: Analyze the options provided in the question. Look for the list that includes Adenine, Guanine, Cytosine, and Uracil, as these are the nitrogenous bases found in RNA.
Step 4: Eliminate incorrect options. Any list that includes Thymine is incorrect because Thymine is not found in RNA; it is specific to DNA.
Step 5: Select the correct answer based on the information above. The correct list of nitrogenous bases found in RNA is Adenine, Guanine, Cytosine, and Uracil.
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