Question Details

(Solution) - In your laboratory you have an F strain of E

Brief item decscription

Solution download

Item details:

In your laboratory, you have an F- strain of E. coli that is resistant to streptomycin and is unable to metabolize lactose, but it can metabolize glucose. Therefore, this strain can grow on a medium that contains glucose and streptomycin, but it cannot grow on a medium containing lactose. A researcher has sent you two E. coli strains in two separate tubes. One strain, let's call it strain A, has an F' factor (an F prime factor) that carries the genes that are required for lactose metabolism. On its chromosome, it also has the genes that are required for glucose metabolism. However, it is sensitive to streptomycin. This strain can grow on a medium containing lactose or glucose, but it cannot grow if streptomycin is added to the medium. The second strain, let's call it strain B, is an F" strain. On its chromosome, it has the genes that are required for lactose and glucose metabolism. Strain B is also sensitive to streptomycin. Unfortunately, when strains A and B were sent to you, the labels had fallen off the tubes. Describe how you could determine which tubes contain strain A and strain B.


About this question:

This question was answered on: Jul 11, 2017

PRICE: $15 (18.37 KB)

Buy this answer for only: $15

Pay using PayPal (No PayPal account Required) or your credit card. All your purchases are securely protected by PayPal.

Need a similar solution fast, written anew from scratch? Place your own custom order

We have top-notch tutors who can help you with your essay at a reasonable cost and then you can simply use that essay as a template to build your own arguments. This we believe is a better way of understanding a problem and makes use of the efficiency of time of the student. New solution orders are original solutions and precise to your writing instruction requirements. Place a New Order using the button below.

Order Now