A researcher observes that a ribosome attached to an mRNA molecule as it is being produced, allowing for the processes of transc
ription and translation to occur simultaneously in a cell. In what cell type is the researcher likely making this observation? A) Animal cell B) Yeast, a fungus C) Cyanobacteria, a prokaryote D) Euglena, a unicellular eukaryote
The correct answer is option C) "Cyanobacteria, a prokaryote".
Explanation:
One characteristic of cyanobacteria and prokaryotic cells that distinguish them from eukaryotic cells, is that they perform the processes of transcription and translation simultaneously. The fact that cyanobacteria and prokaryotic cells does not have a nucleus and have its genomic material within the cytoplasm, makes them able to make more efficient its transcription and translation processes. Therefore, it is very likely that the researcher is making her or his observation while studying cyanobacteria, a prokaryote.
Answer:A checkpoint is a stage in the eukaryotic cell cycle at which the cell examines internal and external cues and "decides" whether or not to move forward with division.
