The study of which of the following diseases led to the discovery that DNA carries genetic
information?
A. Pneumonia D. Spanish flu
B. AIDS E. SARS
C. Tuberculosis
A
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Pedigrees ____
a. are usually constructed using the phenotypic information of one generation b. cannot determine whether a trait has a dominant or recessive pattern c. use squares to represent females and circles to represent males on their diagrams d. are not useful in deducing the genotypes of parents e. provide information on the patterns of inheritance of a trait
A cell can form 10 nm chromatin fibers, but not 30 nm fibers. Which molecule has likely been removed or mutated in this cell?
A) H1 B) H2A C) H3 D) topoisomerase E) SMC proteins
A cell must expend energy to produce a concentration gradient
__________________ Indicate whether the statement is true or false.
The barrier between the intracellular and extracellular fluid compartments in an animal or plant is the:
A. walls of capillaries. B. membrane of the endoplasmic reticulum. C. plasma membrane. D. nuclear membrane. E. membrane of the Golgi apparatus.