Ask Question, Ask an Expert


Ask Biology Expert

In E.coli, four streptomycin-sensitive, prototrophic Hfr strains were mated with a stretomycin-resistant F^- strain auxotrophic for a number of nutritonal requirements. Matings were interrupted at various intervals, and cells were plated on streptomycin-containing minimal meduim supplemented with particular nutrients to test for gene transfer. Entry time (in minutes) of the first five genes for the four strains were as follows:

Hfr strain 1 : M+ (4), Z+(6), X+(11), W+(15),C+(17.5)
Hfr strain 2 : L+ (1), A+ (2), N+(5), C+ (6.5), W+(9)
Hfr strain 3 : A+(2.5), L+(3.5), B+(6), R+(11.5), U+ (15)
Hfr strain4 : Z+ (3), M+(5), U+ (11), R+(14.5), B+(20)

draw the map of the E.coli genome consistent with the data. Include distances between the genes and indicate the insertion points of the F plasmid in each Hfr strain.

Biology, Academics

  • Category:- Biology
  • Reference No.:- M927784

Have any Question? 

Related Questions in Biology

Part anbspdefine each vocabulary word in the following

Part A  Define each vocabulary word in the following table. Use your textbooks or an outside source as references. Provide examples where requested, use complete sentences, and be clear and concise when explaining your a ...

Assignment lasa organisms in your biomein this assignment

Assignment: LASA: Organisms in Your Biome In this assignment, you will create a Microsoft PowerPoint presentation that exhibits the different organisms in your current biome. Include the following in your presentation: • ...

Organic chemistry1 there is an attachement with 24

Organic Chemistry 1. There is an attachement with 24 molecules. Make three classification based on the function group. 2. Fill out the chart in the attactment. Complete the flowchart for the separation and isolation of: ...

Posted in description areaquestions 1response should be at

Posted in Description Area Questions 1 Response should be at least 200 words in length. All sources used, including the textbook, must be referenced; paraphrased and quoted material must have accompanying in-text citatio ...

Assignmentanatomy amp physiologydirections be sure to save

ASSIGNMENT Anatomy & Physiology Directions: Be sure to save an electronic copy of your answer before submitting it to Ashworth College for grading. Unless otherwise stated, answer in complete sentences, and be sure to us ...

Physiology learning planfor your selected topic you are the

Physiology Learning Plan For your selected topic: You are the nephrology nursing educator working with new mill Topics -  GFR -  Removal of metabolic wastes -  Excretion of drugs and toxins -  Total body fluid volume and ...

This sheet must only be turned in at the beginning of next

This sheet must only be turned in at the beginning of next lab. 1. Perform the conversions below: 12,581 mg = _______ kg   683; L = ______mL 5.8 m =________ mm;      6.3 s = _________ MS 2,250 mL = ______ L;      12 m = ...

1what are the components of the cardiovascular system list

1. What are the components of the cardiovascular system? List them. 2. List two functions of the cardiovascular system. 3. Fill in the blank. Blood never leaves the blood vessels and does not exchange substances directly ...

Question 1 in drosophila melanogaster eyeless ey is a

Question 1: In Drosophila melanogaster, eyeless (ey) is a recessive trait in which the eyes are tiny or absent. The ey locus is found on chromosome 4. Monosomy and trisomy for this very small chromosome are compatible wi ...

You receive 12 samples in your laboratory for genetic

You receive 12 samples in your laboratory for genetic screening. The samples form two families. The first family is composed of samples: 1(Mom Smith); 2 (Smith Son 1); 3(Smith Daughter 1); 4(Smith Son 2); 5(Smith Son 3); ...

  • 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

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate