The diagram below shows a process that occurs in the nucleus of a eukaryotic cell.
M
T
T
Which of the following best explains the process that is occurring in this diagram?
AA protein is being attached to a DNA strand before the entire molecule is copied.
BA protein that will be processed in the cytoplasm is being copied from an RNA strand in the nucleus.
An RNA strand is being used to produce a DNA molecule that will carry traits to the next generation.
D An RNA strand that is complementary to a DNA sequence is being produced before being transported to the cytoplasm.