Question

Read the overview and complete the interactivities that follow. The lac operon consists of a series of genes involved in the breakdown of lactose. The expression of the operon is controlled by two regulatory proteins, a repressor and an activator. Together these two regulatory proteins allow the cell to regulate gene expression in response to the levels of glucose and lactose available to the cell. The following questions relate to the lac operon. 1. The Lacl gen makes a repressor portein. True/False, 2.The structural porteins encoded by the lac operon are i lactose synthesis. True/False, 3. The CAP portein is an activator that binds to the operatot.True/False, 4. The product og Lacl is an allosteric protein that can undergo conformotional change when allolactose binds to it.True/False, 5. CAP binding causes the DNA to bend facilitating RNA polymerase binding. True/False

Answer 1

1 True 2 false 3 false 4 true 5 true

Step-by-step explanation:

1 The Lac I gene makes repressor protein True

2 The structural genes encoded by lac operon are involved in lactose synthesis false

3 The CAP protein is an activator protein that binds to the operator false

4 The product of Lac I is an allosteric protein that can undergo conformational change when allolactose binds to it True

5 CAP binding causes DNA to bend facilitating RNA polymerase binding True