Which of the following statements is true about vaccines?
A. Vaccines only work against bacterial disease
B. Vaccines work infecting someone with a dangerous disease
C. Vaccines are yet to be proven safe by scientists.
D. Vaccines work by teaching the bodies immune system to fight off disease
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Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.
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Cedric has a low fever and minor aches. yesterday, he went to the doctor for his booster shot and receive the flu shot. which best explains why he has this reaction?
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Which of the following statements is true about vaccines?
A. Vaccines only work against bacterial...
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