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Which of the following statements about ...

Which of the following statements about RNA is incorrect ?

A

It has a single strand

B

It does not undergo replication

C

It doesnot contain any pyrimidine base

D

It controls the synthesis of proteins

Text Solution

AI Generated Solution

The correct Answer is:
To determine which statement about RNA is incorrect, let's analyze each option provided: 1. **RNA is single-stranded.** - This statement is correct. RNA typically exists as a single strand, unlike DNA, which is double-stranded. 2. **RNA does not undergo replication.** - This statement is also correct. RNA is synthesized from DNA during transcription and does not replicate itself like DNA does. 3. **RNA does not contain any pyrimidine base.** - This statement is incorrect. RNA contains pyrimidine bases, specifically cytosine (C) and uracil (U). Therefore, this statement is false. 4. **RNA controls the synthesis of protein.** - This statement is correct. RNA plays a crucial role in protein synthesis, particularly messenger RNA (mRNA), which carries the genetic information from DNA to the ribosome where proteins are synthesized. **Conclusion:** The incorrect statement about RNA is: "RNA does not contain any pyrimidine base." ### Step-by-Step Solution: 1. **Identify the statements about RNA.** - Review each statement provided in the options. 2. **Evaluate the first statement:** - RNA is single-stranded. This is true. 3. **Evaluate the second statement:** - RNA does not undergo replication. This is also true. 4. **Evaluate the third statement:** - RNA does not contain any pyrimidine base. This is false because RNA contains cytosine, which is a pyrimidine base. 5. **Evaluate the fourth statement:** - RNA controls the synthesis of protein. This is true. 6. **Determine the incorrect statement:** - The statement "RNA does not contain any pyrimidine base" is the incorrect one.
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