________ genes are those that have been inherited by different species from a common ancestor
a. Housekeeping
b. Xenologous
c. Paralogous
d. Homologous
Answer: D
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Once an endosymbiotic relationship was established between a bacteria and a eukaryotic cell, what effect did it have on their genomes?
a. The eukaryotic genome lost some genes whose function could be supported by the bacteria but the bacterial genome did not change. b. Both genomes evolved so that eventually the host and the bacteria became incapable of living independently. c. The bacteria transferred all of its DNA to the eukaryotic nucleus. d. The bacteria lost its genome and relied solely on the eukaryotic cell. e. The endosymbiotic relationship did not affect either cell's genome.
If a person fluent in ASL were to have a stroke that affected primarily the language center involved in coordinating the production of speech (but not its comprehensibility), what effect with this have on the person's ability to sign? What effect would this have on a person's ability to knit or perform other complex manual tasks?
What will be an ideal response?
Zircon crystals that form in molten magma are
easily dated because they contain
a. no lead. b. no uranium. c. uranium but no lead. d. lead but no uranium. e. both lead and uranium.
Which of the following is not one of the major transport systems of the inner mitochondrial membrane?
A) porin channel B) dicarboxylate carrier C) tricarboxylate carrier D) pyruvate carrier E) ATP-ADP carrier