[methyl-14c]pyruvate was administered to isolated liver cells in the presence of sufficient malonate to block succinate dehydrogenase completely. after a time, isocitrate was isolated and found to contain label in both carbon 2 and carbon 4:

What is one benefit of a non renewable resource, such as natural gas? a. generates large amounts of electricity b. less expensive c. produces pollution d. will run out eventually

What molecules will be best used to compare different species with the exact same sequence of amino acids? why would two species have the same protein even if the molecules in question is different? (hint: transcription to translation to protein).

Which best describes a gene? a. a sister chromatid b. a chromosome c. a tetrad d. a piece of a chromosome