In transcription, the 3'-hydroxyl group of the growing rna strand: attacks the alpha-phosphorous group of the incoming nucleotide. binds to a copper ion in the active site. binds to the 5' ribose. attacks the 5' hydrogen of the incoming nucleotide. all of the above none of the above.

The idea of spontaneous generation was disproved by in a experiment involving jars of meat

Which sentence best describes the relationship between chlorophyll and the chloroplast? a.)chlorophyll is a chemical found in a chloroplast. b.) chloroplast is a chemical found in a chlorophyll. c.) both chlorophyll and chloroplasts are found in animals. d.) both chlorophyll and chloroplasts make carbon dioxide.

Which short-term environmental changes would a very small asteroid or comet impact on earth most likely cause? check all that apply. flooding extinction craters on surface changes in weather patterns death of organisms and populations