The Miller-Urey experiment was chemical experiment that simulated the conditions thought at the time to be present on Earth's early atmosphere and tested the chemical origin of life under those conditions. Steps taken to simulate Earth’s early atmosphere are shown on the figure to the right. What were the results of step 5?(15.8)

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.

the fossil record provides evidence of a common ancestor to many species.

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

i think the answer is c hope this