41. Pyruvate, labeled with carbon-14 in the methyl position is fed to cells in the presence of malonate, a compound that blocks the CAC at the succinate dehydrogenase step. Isocitrate was isolated and found to be labeled in two positions with carbon-14. Explain where the labels are found and how two different carbons could have been labeled.

The diagram shows the layers of earth. convection currents in which region influence the movement of tectonic plates

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?

Idon’t know the answer and i’ve been stuck on it for a while now skskskskks