/*! This file is auto-generated */ .wp-block-button__link{color:#fff;background-color:#32373c;border-radius:9999px;box-shadow:none;text-decoration:none;padding:calc(.667em + 2px) calc(1.333em + 2px);font-size:1.125em}.wp-block-file__button{background:#32373c;color:#fff;text-decoration:none} Q8P Explain why (b) Inactivation of ... [FREE SOLUTION] | 91影视

91影视

Log out

Learning Materials

Features

Discover

Chapter 28: Q8P (page 1080)

Explain why (b) Inactivation of both O2 and O3reduces repression 鈥� 70 fold.

Short Answer

Expert verified

In the lac operon, only O1is required for activation of repression O2 and O3inhibits repression.

Step by step solution

01

Activation of the lac operon

In lac operon only O1 is required for activation of repression, can bind up with the operator gene and can encode the structure.If lac operon binds with an SO3, it forms a loop of a3 BP long. If lac operon binds with O1 SO2, it makes a loop of 401 BP long.

02

Repressor of the lac operon

The O3 repressor has operator sites for binding O2 and O3. After binding it isa form of a loop.

Hence, reduces repression -70 fold during inactivation of both O2 and O3.

Unlock Step-by-Step Solutions & Ace Your Exams!

  • Full Textbook Solutions

    Get detailed explanations and key concepts

  • Unlimited Al creation

    Al flashcards, explanations, exams and more...

  • Ads-free access

    To over 500 millions flashcards

  • Money-back guarantee

    We refund you if you fail your exam.

Over 30 million students worldwide already upgrade their learning with 91影视!

One App. One Place for Learning.

All the tools & learning materials you need for study success - in one app.

Get started for free

Most popular questions from this chapter

Why does the lack opera include more than one operator sequence?

Describe the regulation of the lack opera by lack repressor and CAP.

Describe the steps of RNA interference.

Why is the spacing between enhancers and promoters variable?

Why is chromatin remodeling necessary for efficient gene expression?
See all solutions

Recommended explanations on Biology Textbooks

Genetic Information

Read Explanation

Ecological Levels

Read Explanation

Chemistry of Life

Read Explanation

Reproduction

Read Explanation

Cellular Energetics

Read Explanation

Communicable Diseases

Read Explanation
View all explanations

What do you think about this solution?

We value your feedback to improve our textbook solutions.

Study anywhere. Anytime. Across all devices.