Biology Answers

5. What selective-differential media can be used for one-step detection of the following pathogens from water samples using the membrane filtration technique: (4 marks)

- E. coli

- Coliforms

- Salmonella

- Pseudomonas

Viruses that cause disease in humans can be completely eradicated even if it uses vectors other than humans.

Select one:

True

False

The “small pox virus” is the only viral disease of humans that has been successfully eradicated.

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True

False

Astrazenneca vaccine can cause changes in the human DNA.

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True

False

Pfizer vaccine uses the chimpanzee adenovirus as a vector to introduce the corona virus spike protein mRNA into the human cells.

Select one:

True

False

The enzyme “reverse transcriptase” is used to create a cDNA (complementary DNA) of the Corona virus in order to detect it via RT-PCR.

Select one:

True

False

All viruses can infect the gametic cells of humans and become inheritable.

Select one:

True

False

Getting both doses of vaccination against the corona virus guarantees that you will not be infected with the virus when your body encounters it in the future

Select one:

True

False

Vectors cannot transport viruses across different species of organisms.

Select one:

True

False

The current covid vaccination aims to introduce the viral spike protein into the nucleus of the human cell.

Select one:

True

False