Koch's postulates can be used to determine the causes of infectious diseases.
Answer the following statement true (T) or false (F)
True
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The filtration step in the formation of urine for animals sorts materials only by
A. overall size with cells and proteins usually being kept out of the filtrate. B. whether they are charged or not. C. whether the substance in question is a waste product or not. D. whether they contain nitrogen or not. E. the hydration state of the body.
Which scientists are credited for deducing the true structure of DNA?
A. Rosalind Franklin B. Erwin Chargaff and Oswald Avery C. Martha Chase and Frederick Griffith D. James Watson and Francis Crick
An individual with the genotype AaBbCC will produce gametes with which possible assortment of genes?
A) A,B,a,b, or C B) Aa, Bb, or Cc C) ABC, AbC, aBC, or abC D) AaBbCC
Which of the following best describes how chromosomes move toward the poles of the spindle during mitosis?
A) The chromosomes are "reeled in" by the contraction of spindle microtubules. B) Motor proteins of the kinetochores move the chromosomes along the spindle microtubules. C) Nonkinetochore spindle fibers serve to push chromosomes in the direction of the poles. D) The chromosomes are "reeled in" by the contraction of spindle microtubules, and motor proteins of the kinetochores move the chromosomes along the spindle microtubules. E) The chromosomes are "reeled in" by the contraction of spindle microtubules, motor proteins of the kinetochores move the chromosomes along the spindle microtubules, and nonkinetochore spindle fibers serve to push chromosomes in the direction of the poles