When maintaining homeostasis in mammals antidiuretic hormone ( ADH ) is essential . In response to elevated tissue osmolarity ADH is released from the hypothalamus . The collecting duct and distal tubule in the kidney become more permeable to water in response to ADH , which increases water reabsorption into the capillaries . A negative feedback loop regulates the quantity of hormones released Which of the following statements reflects the proper relationship between osmolarity release of ADH and production of urine depending on the model presented ?

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.

not too sure but maybe in the hot springs.