A plant seed is exposed to a chemical mutagen. The embryo undergoes a subsequent mutation that renders its gene for mitochondrial ATP synthase nonfunctional. If the seed is planted in soil, which of the following is the most likely effect of this mutation on the developing embryo? A. the plant will germinate and grow as a sickly plant, because it will use chloroplast ATP synthase in place of the nonfunctional mitochondrial ATP synthase
B. the plant will germinate but not grow, because it will not be able to extract the energy it needs from glucose made by photosynthesis in emerging leaves
C. the plant will germinate and grow normally, because the mutation has no negative effect, since the plant can meet its energy needs by carrying out photosynthesis
D. the plant will no longer germinate, because its cells will not be able to extract the energy it needs from glucose present in stored starch granules