Accurately predict the ability of F+ and Hfr conjugation to cause each of the 4 common mechanisms of bacterial resistance to antibiotics
Added by Melissa R.
Close
Step 1
Mutation: F+ and Hfr conjugation are not directly involved in causing mutations in bacteria. Mutations occur spontaneously in the bacterial genome and can lead to the development of antibiotic resistance. Therefore, F+ and Hfr conjugation would not have a direct Show more…
Show all steps
Your feedback will help us improve your experience
Briana De La Torre and 55 other Biology educators are ready to help you.
Ask a new question
Labs
Want to see this concept in action?
Explore this concept interactively to see how it behaves as you change inputs.
Key Concepts
Recommended Videos
Distinguish between F+ and F- bacteria. What is the difference between F+ and Hfr bacteria?
Sri K.
You are given two strains of E. coli. The Hfr strain is arg+ ala+ glu+ pro+ leu+ Ts; the F– strain is arg– ala– glu– pro– leu– Tr. All the markers are nutritional except T, which determines sensitivity/susceptibility or resistance to phage T1. The order of entry is as given, with arg+ entering the recipient first and Ts last. You find that the F– strain dies when exposed to penicillin (pens), but the Hfr strain does not (penr). How would you locate the locus for pen on the bacterial chromosome with respect to arg, ala, glu, pro, and leu? Formulate your answer in logical, well-explained steps and draw explicit diagrams where possible.
Resistance to antibiotics is a well-recognized medical problem. Which mechanism(s) can account for a bacterium's ability to increase its genetic variability and thus adapt itself to resist different antibiotics? Binary fission Conjugation Transduction a. I and II only b. I and III only c. Il and III only d. I, II, and III
Recommended Textbooks
Biology for AP Courses
Objective Biology for NEET
Introduction to General, Organic and Biochemistry
18,000,000+
Students on Numerade
Trusted by students at 8,000+ universities
Watch the video solution with this free unlock.
EMAIL
PASSWORD