Microbiology and Immunology Quiz
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Questions and Answers

What type of cell division do bacterial cells undergo?

  • Electrolysis
  • Mitosis
  • Binary Fission (correct)
  • Meiosis

How are Leptospira species typically transmitted to humans?

  • Through contact with contaminated food
  • Through animal bites
  • Through contact with urine from an infected animal (correct)
  • Through respiratory secretions

What is a characteristic of B-cells that is not found in T-cells?

  • CD3
  • Surface immunoglobulin (correct)
  • Class I MHC
  • Polyclonal activation by concanavalin A

What is the primary mode of transmission for listeriosis?

<p>Contaminated food (C)</p> Signup and view all the answers

Which bacterium is an obligate parasite?

<p>Mycobacterium leprae (B)</p> Signup and view all the answers

What is a classic symptom of pertussis?

<p>Paroxysmal coughing (D)</p> Signup and view all the answers

Which of the following viruses is not oncogenic?

<p>HCV (B)</p> Signup and view all the answers

What is the primary method of laboratory diagnosis for HIV infection?

<p>Detection of antigen and antibodies (B)</p> Signup and view all the answers

What is a primer in molecular biology?

<p>A short sequence of oligonucleotide (A)</p> Signup and view all the answers

Which of the following is NOT a direct viral diagnostic technique?

<p>Biochemical tests (C)</p> Signup and view all the answers

What is the first step in all virus infection?

<p>Attachment to cell receptor (C)</p> Signup and view all the answers

Rubella has the most serious consequences in:

<p>Pregnant Women (C)</p> Signup and view all the answers

What is the type of mutation that involves a change in a single base pair?

<p>Point mutation (D)</p> Signup and view all the answers

Which of the following microorganisms does not have an outer capsule?

<p>Staphylococcus aureus (D)</p> Signup and view all the answers

What is the function of the enzyme Reverse Transcriptase in HIV-1?

<p>Converting RNA to DNA (B)</p> Signup and view all the answers

Which of the following is a hallmark of the adaptive immune system?

<p>Specificity and Memory (C)</p> Signup and view all the answers

What is the primary mode of transmission of Leptospira?

<p>Contact with urine from infected animal (C)</p> Signup and view all the answers

Which of the following bacteria is commonly associated with food intoxication?

<p>Staphylococcus aureus (A)</p> Signup and view all the answers
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