Which of the following causes serious congenital disease from transplacental transmission?
A. Toxoplasmosis
B. Giardiasis
C. Malaria
D. Balantidiasis
E. Trichomoniasis
Answer: A
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Vanillin is to flavonoids as atropine is to
A. flavonoids. B. terpenoids. C. polyketides. D. alkoloids. E. B-carotenes.
What is the best evidence that all life evolved from prokaryotic rather than eukaryotic ancestors?
A. Bacteria are unicellular. B. Prokaryotes possess peptidoglycan in their cell walls. C. The oldest fossil form of life known is prokaryotic. D. Prokaryotes possess flagella.
Enzymes used to cut genes in recombinant DNA research are known as ____.
A. ligases B. restriction enzymes C. transcriptases D. DNA polymerases E. replicases
Answer the following questions true (T) or false (F)
1. Invertebrate animals greatly outnumber vertebrates. 2. Whereas all animals are multicellular, some are nevertheless microscopic. 3. There is far more animal diversity in the ocean than on land in part because animals first evolved in the ocean.