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Select the statement that is not correc...

Select the statement that is not correct for mRNA.

A

Monocistronic mRNA encodes only one protein

B

A non-interrupted gene is also called a split gene

C

The mature mRNA consists exclusively of exons and has all introns removed

D

Eukaryotic RNA formed after transcription is known as precursor messenger RNA

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question regarding which statement about mRNA is not correct, we will analyze each of the provided statements step by step. ### Step 1: Analyze the First Statement **Statement:** Monocistronic mRNA encodes only one protein. **Analysis:** This statement is true. Monocistronic mRNA is a type of mRNA that is transcribed from a single gene and encodes for only one protein. ### Step 2: Analyze the Second Statement **Statement:** A non-interrupted gene is also called a split gene. **Analysis:** This statement is incorrect. A split gene refers to a gene that contains both exons (coding regions) and introns (non-coding regions), meaning it is interrupted. A non-interrupted gene would not have introns and would not be referred to as a split gene. ### Step 3: Analyze the Third Statement **Statement:** The mature mRNA consists exclusively of exons and has all introns removed. **Analysis:** This statement is true. Mature mRNA is formed after the splicing process, where introns are removed, leaving only the exons, which are the coding regions. ### Step 4: Analyze the Fourth Statement **Statement:** Eukaryotic RNA formed after transcription is known as a precursor messenger RNA. **Analysis:** This statement is true. The initial RNA transcript in eukaryotes is called precursor mRNA (pre-mRNA) before it undergoes processing to become mature mRNA. ### Conclusion After analyzing all the statements, we find that the second statement is the only incorrect one. Therefore, the answer to the question is that the statement "A non-interrupted gene is also called a split gene" is not correct for mRNA. ### Final Answer The incorrect statement regarding mRNA is: **A non-interrupted gene is also called a split gene.** ---
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