How Does the Lactose Repressor Block Transcription of the Lactose

question 13

Multiple Choice

How does the lactose repressor block transcription of the lactose operon?

• A) By "turning off" the lacA intron
• B) By degrading the lacZ protein product
• C) By binding allosterically to the lacZ gene
• D) By slowing the uptake of lactose into the cell
• E) By binding to the operator

---

Definitions:

Peripheral Devices

External devices connected to a computer that extend its capabilities, including printers, mice, and keyboards.

USB Port

A universal serial bus interface used to connect devices to a computer, facilitating communication and power supply.

Device Driver

Software that allows higher-level computer programs to interact with a hardware device.

Printer

A device that transfers text and graphics from a computer onto paper or other media, producing physical copies of digital documents.