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Multiple Choice
Which of the following is NOT true of RNA?
A
RNA contains the base thymine.
B
RNA can function as a catalyst in biological reactions.
C
RNA contains the sugar ribose.
D
RNA is typically single-stranded.
Verified step by step guidance
1
Understand the structure of RNA: RNA, or ribonucleic acid, is a nucleic acid similar to DNA but with some key differences. It is typically single-stranded and contains the sugar ribose.
Identify the bases present in RNA: RNA contains four nitrogenous bases: adenine (A), guanine (G), cytosine (C), and uracil (U). Unlike DNA, RNA does not contain thymine.
Recognize the role of RNA in biological reactions: RNA can function as a catalyst in biological reactions, often referred to as ribozymes. This catalytic activity is crucial in processes like protein synthesis.
Compare RNA and DNA: While both RNA and DNA are nucleic acids, RNA is usually single-stranded, whereas DNA is double-stranded. This structural difference is important for their respective functions.
Evaluate the statements: Based on the understanding of RNA's structure and function, determine which statement is incorrect. The statement 'RNA contains the base thymine' is not true, as RNA contains uracil instead.