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Multiple Choice
Which statement is the correct definition of polycistronic mRNA?
A
Polycistronic mRNA is an mRNA molecule that contains introns and exons.
B
Polycistronic mRNA is a single mRNA molecule that encodes multiple proteins.
C
Polycistronic mRNA is an mRNA molecule that is translated into a single protein.
D
Polycistronic mRNA is an mRNA molecule that is synthesized in eukaryotic cells.
Verified step by step guidance
1
Understand the concept of mRNA: Messenger RNA (mRNA) is a type of RNA that carries genetic information from DNA to the ribosome, where proteins are synthesized.
Differentiate between monocistronic and polycistronic mRNA: Monocistronic mRNA encodes a single protein, whereas polycistronic mRNA encodes multiple proteins.
Recognize the organisms where polycistronic mRNA is typically found: Polycistronic mRNA is commonly found in prokaryotes, such as bacteria, rather than eukaryotes.
Identify the structure of polycistronic mRNA: It contains multiple open reading frames (ORFs), each of which can be translated into a different protein.
Select the correct definition: Based on the understanding that polycistronic mRNA encodes multiple proteins, choose the statement that reflects this characteristic.