Which of the following led thomas hunt morgan to conclude that crossing over occurs?
genes on the same chromosome are sometimes inherited separately.

dominant linked genes often express codominance.

genes on the same chromosome are linked and inherited together.

all of the above are correct.

What happens as electrons move along the chain of molecules known as the electron transport chain? they gain energy, which causes atp molecules to lose phosphate groups. they gain energy, which causes h *ions to join with oxygen to produce water. they lose energy, which is then used by the cell to make atp. they lose energy, which is then used to break down atp.