molecular questions 15 Which model proposes that the sigma s

molecular questions

15. Which model proposes that the sigma subunit is released any time after RNA polymerase leaves the promoter? 16, which hypothesis proposes that downstream DNA is drawn into the transcription bubble before sigma and core enzyme leave the promoten? 17. What type of sugar is lactose? 18. Which enzyme cleaves lactose? Spelling counts.

Solution

17. Lactose is a disacharide madeup of glucose and galactose.

18. Beta galactosidase is the enzyme which cleaves lactose.