3. Which statement best describes a hypothesis? (1) A hypothesis is the process of making careful observations.
(2) The conclusion drawn from the results of an experiment is part of a hypothesis.
(3) A hypothesis serves as a basis for determining what data to collect when designing an experiment.
(4) The facts collected from an experiment are written in the form of a hypothesis.

One function of the poly-a tail on eukaryotic mrna sequences is to the mrna be transported from the nucleus to the cytoplasm. prokaryotic mrna also has a poly-a tail. choose the best explanation of the prokaryotic poly-a tail. a. prokaryotic poly-a tails are composed of a different molecular structure compared with eukaryotic poly-a tails. b. prokaryotic poly-a tails have the same functions as eukaryotic poly-a tails, because this process is highly conserved throughout different species. 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.