🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Biology
2
answers
0
watching
29
views
18 Dec 2019

If the experimenter used a mixed/contaminated culture in theinoculation of an Enterotube, how would the sensitivity andspecificity be affected?

Please no massive pharagraphs. Please answer short and sweet ina couple sentences.

Watch
2
answers
0
watching
29
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Get unlimited access
Already have an account? Log in
Share
Get unlimited access
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

You are given a mixed culture that contains 1.2 x 10^3 CFU/ml of Organism X and 7.5 x 10^7 CFU/ml of Organism Y. If you used this mixed culture as your sample and only used the serial dilution, and standard plate count technique, how easy would it be for you to isolate a PURE culture of Organism X? Explain why?

Thank you!!

A tragic accident has occurred in your research lab; one of yourtwo grad students has died due to massive butyrate poisoning. Youimmediately launch an investigation and find that someone hasaccidently stored your aerobic, halophilc psychrophile prokaryotein the lab food fridge as opposed to the cell culture fridge.
The only food items found in the fridge is a jar of dill pickles,an apple pie, a pitcher of orange juice and 2 forks (one long, oneshort). What food item would you suspect was contaminated with yourprokaryote?

How would you confirm this?

Assuming both graduate students shared the food during a late nightmeal together what is your explanation regarding the metabolicpathways of your prokaryote and how your bacteria killed the gradstudent and why is the second grad student still alive?

Kind of confused. any insight? Thanks.

Question 2. You are given a yeast culture ofconcentration 1.8 x 1010 cfu/ml. You are asked to make a1.8 x 10-8 dilution from this stock culture. The volumesin your tube(s) should not exceed 10 ml and the volumes you pipetteshould not be less than 0.1 ml.

(i) What is the CDF for this dilution?

(ii) Given your volume constraints, can you do this dilution ina single step? If yes, show me how. If no, answer questions (iii)and (iv) below.

(iii) If no, demonstrate (draw or grid out) how you would set upthe dilution. For each step, indicate in an orderly fashion thefollowing information: V2, V1, diluentvolume, DF for each dilution step, CDF upto that step, yeast concentration at that step.

(iv) Is this a serial dilution or a dilution series?

(v) What volume should you plate from the 1.8 x 10-8dilution to get 81 colonies

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in