During the elongation phase of transcription, how is RNA polymerase able to "read" the DNA sequence of bases? O a. The RNA polymerase rotates like a corkscrew around the DNA helix - reading the sequence of bases while the two DNA strands remain completely hydrogen-bonded together. O b. The two DNA strands are temporarily reversed, so that the sugar-phosphate backbones are next to each other and the bases point outwards, allowing RNA polymerase to read the base sequence. O c. An enzyme complex unwinds and separates the two DNA strands down the full length of the gene (~1000-3000 bases), so that the RNA polymerase can travel smoothly along the template strand. O d. The RNA polymerase can separate the two strands of DNA as it travels, creating a small "window" between the strands, so it can read the template strand and create the complementary RNA copy.

RNA polymerases carry out transcription much more slowly than DNA polymerases carry out replication. Why is speed more important in replication than in transcription?

Using the transcription unit diagrammed below, in which exons are represented by blue boxes and introns are represented by the connecting lines.  You discover a single base deletion in region E of this DNA sequence. Regarding transcription, this mutation will likely: 1.) Result in an alteration to the mRNA sequence. 2.)Have no effect on transcription or the mRNA sequence 3.)Prevent transcription at the TATAA box 4.) Result in an increase or decrease in the amount of mRNA transcribed

Explain the degeneracy of the genetic code. What is the wobble in codon-anticodon recognition