How does the use of nonrenewable resources compare to the use of renewable resources? a. the use of renewable resources is potentially more harmful to the environment than the use of nonrenewable resources. b. the use of renewable resources is more common and widespread than the use of nonrenewable resources. c. the overuse of renewable resources can lead to problems similar to those associated with the use of nonrenewable resources. d. renewable resource use is more problematic than the use of nonrenewable resource use.

is in the form atp or adenosine triphosphate

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.