18. The nitrogen base pairs for RNA are * O A. C-G AND A-T
O B. A-C AND T-U
C. A-U AND C-G
O D. C-G AND U-T

Which of the organisms listed below performs nitrogen fixation? a. legumes b. plants c. bacteria d. fungi

16. which of the following accurately describes a step within transcription? a. dna polymerase uses one strand of rna as a template to put together nucleotides. b. the dna strand is used as a template for which a complementary rna strand can be produced. c. the rna strand forms a template by which dna can be built. d. the rna strand is produced within the cytoplasm.

Which is the most likely reason the writer of the play pygmalion chose to change the character of galatea from a statue to working-class woman?