Question

43. Gram negative rod, spread in the feces of humans only, incubation period two weeks, symptoms...

43. Gram negative rod, spread in the feces of humans only, incubation period two weeks, symptoms begin with high fever and headache for a week, followed with diarrhea in the second week.

Campylobacter jejuni

Staphylococcus aureus

Salmonella enterica Typhi

Salmonella enterica

Shigella sonnei

53. 1. Identify a specific chemical/ or sterilization process that you could use to to sterilize or disinfect the following:

A. Skin before an injection

B. Agar media for growing bacteria

C. Surface infected with coronavirus

2. Why was DNA polymerase "Molecule of the Year"? (2)

Homework Answers

Answer #1

43)

solu :

  • Shigella sonnei : Shigella sonnei causes shegellois ,
  • Shigellois is an infectious disease and the who are infected with shigela sonnei develope diarrhea,fever,stomach cramps etc.

53)

solu :

  • Skin before injection : Alcohol is used to disinfect the skin before injection.Alcohol is a good disinfectant and reduce all the bacteria on skin.
  • Agar media for growing bacteria : Autoclave, the process of growth medium sterilization is commonly performed by autoclaving.
  • DNA polymerase is responsible for the process of DNA replication,during which double standard DNA molecule is copied into two identical DNA molecules.
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