Transcribe the following dna sequence by listing the corresponding mrna sequence. dna: cga-tta-cag mrna: ?

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

Anormal strand of dna is shown below, followed by the same strand of dna after mutations have occurred.

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.