Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

What are the highly condensed portion of chromatin which appear as very dark areas in an transmission electron micrograph

An allosteric transcription regulator called HisP regulates the enzymes for histidine biosynthesis in the bacterium E.coli histidine modulates HisP activity. On binding histidine , HisP alters its conformation, markedly changing its affinity for the regulatory sequences in the promoters of the genes for the histidine biosynthetic enzymes.

A if HisP function as a gene repressor, would you expect that hisP would bind more tightly or less tightly to the regulatory sequence when histidine is abundant? describe your answer.

B if HisP functions as a gene activator, would you expect that HisP would bind more tightly or less tightly to the regulatory sequences when histidine levels are low ? describe your answer.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M943459

Have any Question? 


Related Questions in Biology

How does dna polymerase facilitate the pcr

How does DNA polymerase facilitate the PCR reaction?

A foreign america executive finds that a foreign subsidiary

A foreign America executive finds that a foreign subsidiary in a poor nation has hired a 12-year-old girl to work on a factory floor, In violation of the company's prohibition on child labor. He tells the local manager t ...

In an experimental template having perfectly placed 5

In an experimental template having perfectly placed 5 nucleosomes there is a single EcoR1 site buried near dyad axis of the 3rd nucleosome. Is it possible for a modeller to make this site accessible without disturbing an ...

In the video on the effect of exercise on cells it was

In the video on the effect of exercise on cells, it was pointed out that people who exercised regularly had younger cells. The researchers looked for a marker in volunteer's blood. They found "strands" and surmised that, ...

Please refer to the following interactive map as you

Please refer to the following interactive map as you complete this activity: http://worldpopulationhistory.org/map/2050/mercator/1/0/25/  Here are instructions for how to read the map: http://worldpopulationhistory.org/h ...

Generally aneuploidies are caused by the impaired

Generally, aneuploidies are caused by the impaired assortment of chromosomes during meiosis. For example, they are caused when the homologous chromosomes of pair 21 do not separate and, therefore, gametes with two chromo ...

You are caring for a patient who is extremely ill but might

You are caring for a patient who is extremely ill, but might be helped if he could get access to a drug that is already approved in Europe. Write a paragraph describing why it is sometimes a good thing for drugs not to b ...

The sheep dolly was the first animal cloned by

The sheep Dolly was the first animal cloned by transplanting the nucleus from a cell from an adult sheep into an egg of a donor sheep. Dolly appeared to grow normally for several years, but at age 6, she developed compli ...

Biol 101 study guide quizquiz preparation tasks11 your

BIOL 101 STUDY GUIDE: QUIZ Quiz Preparation Tasks: 11 Your Answers and Notes Elegant Responsiveness A hormone that controls a person's appetite might bind to ____________ proteins on membranes in the brain. What is the t ...

There is a common misconception that traditional taxonomy

There is a common misconception that traditional taxonomy is based on morphology, while cladistics is based on genetic data. How is this misconception incorrect?

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro