A mutation that inactivates the regulatory gene of a repressible operon in an E. coli cell would result ina. Complete inhibition of transcription of the structural gene controlled by that regulator b. Irreversible binding of the repressor to the operator c. Continuous translation of the rRNA transcribed d. Continuous transcription of the structural gene

Sure! Here's an example of how to solve a quadratic equation: Given a quadratic equation $a{x}^2+bx+c=0$, where $a,b,c$ are constants and $a\ne 0$, the solution can be found using the quadratic formula: $x=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$ Step 1: Identify the values of $a$, $b$, and $c$ in the given equation. Step 2: Substitute the values of $a$, $b$, and $c$ into the quadratic formula. Step 3: Simplify the expression inside the square root and evaluate it. Step 4: Compute the two possible values of $x$ by adding and subtracting the square root from $-b$ and dividing by $2a$. Step 5: Check the solutions by substituting them back into the original equation and verifying that they satisfy the equation. Step 6: Write the final solutions as ordered pairs $(x_1,x_2)$ or as a set of solutions $\{x_1,x_2\}$, depending on the context of the problem.