What are the two major components of the Tobacco Mosaic Virus?
A) RNA and DNA
B) carbohydrates and nucleic acids
C) DNA and protein
D) RNA and protein
E) lipids and nucleic acids
D
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How does a vaccination help to prevent a disease?
A. It generates a population of B memory cells that will speed up response to an actual infection. B. It reduces the severity of symptoms to a disease. C. It established defenses that prevent a pathogen from returning to the body. D. It generates a population of plasma cells that increase the concentration of antibody in the bloodstream.
Stem cells are _____
a. unspecialized b. specialized c. unable to divide d. always pluripotent e. only found in embryos
Which of the following is NOT a function of the integumentary system?
A. defense against pathogens B. fluid transport C. supporting the weight of body structures D. protection from dehydration E. regulation of body temperature
During Mendel's pea plants experiment, he discovered that the trait for tallness is dominant to that of shortness. Which of the following statements is correct?
A. Tall = TT or tt while short = Tt B. Tall = TT or Tt while short = tt C. Tall = tt while short = TT or Tt D. None of these statements are correct.