Protein synthesis occurs as a series of events that begins with DNA in the nucleus and ends with a fully formed and shaped protein molecule. Which of the events in protein synthesis demonstrates that the expression of genes is a regulated process?
Answer
A An mRNA molecule is transcribed from a section of DNA.
B The mRNA exits the nucleus through nuclear pores.
The mRNA is translated by a ribosome to form a polypeptide strand.
The polypeptide strand is folded into the appropriate shape.
с

The fruit of a certain plant is sweet and fleshy. the seeds of this plant have a seed coat that is fairly tough. the seeds germinate better if they are exposed to acid, or scarification. what is the most likely type of dispersal for this seed? water animal wind

The graph shows the amount of global warming happening in different ecosystems. which populations of organisms will likely decline the most as a result of climate change, and why? a.coral reefs because of the loss of the symbiotic algae living within their bodies b.penguin populations because the fish they eat will move into warmer waters c.mountain-dwelling birds because rising sea levels will relocate their food sources d.large cats in the rainforest because of decreased habitat loss for their prey

Which of the following is a true statement? a. individuals evolve to have adaptations. b. individuals have adaptations that can change over time. c. individuals have traits that may or may not make them successful at reproduction. d. populations cant evolve, only individual organisms.