One function of the poly-A tail on eukaryotic mRNA sequences is to help the mRNA be transported from the nucleus to the cytoplas
m. Prokaryotic mRNA also has a poly-A tail. Choose the best explanation of the prokaryotic poly-A tail. A. Prokaryotic poly-A tails have the same functions as eukaryotic poly-A tails, because this process is highly conserved throughout different species.
B. Prokaryotic poly-A tails are composed of a different molecular structure compared with eukaryotic poly-A tails.
C. Prokaryotic poly-A tails aren't important, because prokaryotes don't have nuclei.
D. Prokaryotic poly-A tails have other functions, because prokaryotes don't have nuclei.
Answer: I believe the answer is D. Prokaryotic poly-A tails have other functions, because prokaryotes don’t have nuclei.
Reasoning: A prokaryote is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle. Thus the prokaryotic poly-A tail can not serve the same function as a eukaryotic poly-A tail.
Undercutting of the mountain slope by glacial erosion and the retreat of the glacier are the main contributing factors for the rock avalanches, along with thawing permafrost and weaknesses in the bedrock. Landslides falling into glacial lakes may cause tsunamis and river floods and thus pose hazard to people.
The equator receives more of sunlight throughout the year, compared to increasing latitude, hence the atmosphere and oceans within this latitude are warmer. When winds blow away from the equator, they transfer this heat energy to the cooler higher latitudes.
Yes, wind can travel faster than the speed of sound. Wind is just the bulk movement of a mass of air through space and is in principle no different from a train speeding along or a comet zipping through space.
