An organism that undergoes the glyoxylate cycle can make sugar from fat because: A) there is a specific isomerase that converts a six-carbon fatty acid to glucose. B) the unique reactions of the glyoxylate cycle bypass the two decarboxylation reactions of the citric acid cycle. C) glyoxysomes lack succinate dehydrogenase.

During crossing-over, a. genetic material is exchanged between nonsister chromatids, resulting in new combinations of alleles. b. nonsister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. c. one homologous chromosome of a tetrad is exchanged with another tetrad, resulting in new combinations of alleles. d. sister chromatids from each homologous chromosome of a tetrad are exchanged, resulting in new combinations of alleles. e. genetic material is exchanged between sister chromatids, resulting in new combinations of alleles.