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Multiple Choice
Which of the following RNA molecules can be found both in the nucleus and at a ribosome?
A
snRNA (small nuclear RNA)
B
rRNA (ribosomal RNA)
C
tRNA (transfer RNA)
D
mRNA (messenger RNA)
Verified step by step guidance
1
Understand the role of each type of RNA: snRNA is involved in splicing within the nucleus, rRNA is a component of ribosomes, and tRNA is involved in translation by bringing amino acids to the ribosome.
Recognize that mRNA is synthesized in the nucleus during transcription, where it carries the genetic information from DNA.
Identify that after mRNA is processed in the nucleus, it is transported to the cytoplasm.
In the cytoplasm, mRNA associates with ribosomes to guide protein synthesis during translation.
Conclude that mRNA is the RNA molecule that is found both in the nucleus (during and after transcription) and at the ribosome (during translation).