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General Microbiology NEET MDS Practice Test
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General Microbiology - 3 Questions

1
General Microbiology
The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a
1. significant increase in number of oral bacteria
2. shift towards a more acidogenic microflora
3 significant decrease in number of oral bacteria
4 shift towards a more aerobic micro flora

📝 Explanation:

The most pronounced effect on the oral microflora of a reduction in rate of salivary flow is a shift towards a more acidogenic microflora

2
General Microbiology

What is the recommended storage condition for both recombinant and plasma-derived hepatitis B vaccines?
1) At room temperature
2) In a refrigerator
3) In a freezer
4) At 4C to 8C

📝 Explanation:

oth recombinant and plasma-derived hepatitis B vaccines should be stored at temperatures between 4C and 8C to maintain their efficacy and stability. Proper storage is crucial to ensure the vaccines remain effective when administered.

3
General Microbiology

Why is it critical to design primers with a similar melting temperature (Tm) for PCR?
1) To ensure specific binding to the target DNA
2) To ensure efficient and synchronous annealing during the reaction
3) To prevent nonspecific amplification products
4) To allow more cycles of amplification

📝 Explanation:

Correct answer: 2) To ensure efficient and synchronous annealing during the reaction

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