09-27-2008, 06:23 PM
C is the correct answer
Alpha-amanitin is found in death cap mushrooms. These types of mushrooms are native to Europe and are widespread. Early symptoms of intoxication are diarrhea and cramping which subside within the first day. This can give a false sense of remission. Intoxication eventually leads to renal failure, respiratory failure, and eventually death within the first week after ingestion. RNA polymerase II is responsible for the synthesis of mRNA (choice C). RNA polymerase I makes rRNA (choice D) and RNA polymerase III makes tRNA (choice E).
RNA polymerases do not make DNA (choice B).
cDNA (choice A) is not naturally occurring in the body. It is made in the laboratory and is a copy of all mRNA encoding regions present in cells. It is tissue specific and expresses genes found only in the tissue from which it is derived.
Alpha-amanitin is found in death cap mushrooms. These types of mushrooms are native to Europe and are widespread. Early symptoms of intoxication are diarrhea and cramping which subside within the first day. This can give a false sense of remission. Intoxication eventually leads to renal failure, respiratory failure, and eventually death within the first week after ingestion. RNA polymerase II is responsible for the synthesis of mRNA (choice C). RNA polymerase I makes rRNA (choice D) and RNA polymerase III makes tRNA (choice E).
RNA polymerases do not make DNA (choice B).
cDNA (choice A) is not naturally occurring in the body. It is made in the laboratory and is a copy of all mRNA encoding regions present in cells. It is tissue specific and expresses genes found only in the tissue from which it is derived.