Which of the following is an example of horizontal gene transfer?
a. The endosymbiotic origin of mitochondria in eukaryotic cells from once free-living bacteria
b. Formation of a hybrid zone among species of oaks
c. Mating between humans and Neanderthals
d. Mating among different breeds of dog
e. Inheritance by a child of red hair from his father
Answer: a. The endosymbiotic origin of mitochondria in eukaryotic cells from once free-living bacteria
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____________________ Indicate whether the statement is true or false.
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