Studies of genome sequences from a number of organisms is known as comparative genomics
1.True
2.False
1
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The fungus that causes black stem rust of wheat is a:
a. basidiomycete. b. chytridiomycete. c. ascomycete. d. glomeromycete. e. zygomycete
Sea snakes, which are reptiles, are similar in body form to eels, which are fish. Sea snakes and eels therefore
demonstrate:a. role reversal. b. ancestral traits c. homologous traits. d. divergent evolution. e. convergent evolution.
Which of the following is NOT a characteristic of amphibians?
A. They have lungs. B. They have a cartilaginous skeleton. C. They are ectothermic. D. They have a three-chambered heart. E. They have vertebrae.
Why do your chromosomes come in pairs?
a. Because DNA is double-stranded, one member of each chromosome pair carries a strand that is complementary to the strand carried by the other chromosome. b. Because cell division via mitosis cannot take place without paired chromosomes. c. Because one member of each pair came from my mother and the other from my father. d. Because so much genetic information must be carried, all organisms, including humans, need twice as much DNA in order for it all to fit.