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It is imperative to use aseptic techniques whe handling microbial cultures because aseptic techniques:
1. reduce contamination of your cultures from enviornment
2. reduce contamination/transfer of bacteria between different culture smears
3. helps to isolate a single microorganism to get a culture smear of
Answer:
C. the causes of cancer are not usually genetic.
Explanation:
Tissues invaded by viruses, which attempt to replicate themselves by taking over cellular machinery, secrete small proteins called <span>interferon</span> to protect nearby cells and hinder further multiplication of the viruses.
Ignore this I just need to answers questions to be able to ask questions
