For the purposes of this question, assume that being Rh+ is a consequence of D and that Rh? individuals are dd. The ability to taste phenylthiocarbamide (PTC) is determined by the gene symbolized T (tt are nontasters). A female whose mother was Rh?
has the MN blood group, is Rh+ and a nontaster of PTC, and is married to a man who is MM, Rh?, and a nontaster. Assume that all the loci discussed in this problem are autosomal and independently assorting. Which of the following is NOT a possible genotype of the children?
A) MMddtt B) MNDdtt C) MNDDtt D) MMDdtt E) MNddtt
Answer: C
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In the electron transport system
A. NADH and FADH2 both donate electrons at the same location. B. NADH donates electrons "upstream" of where FADH2 donates electrons. C. NAD donates electrons at the head of the chain. D. NADP donates electrons in the middle of the chain.
At equilibrium, the gas molecules that dissolve in solution and those that remain in the gaseous phase are, by definition, at the same
A) concentration. B) temperature. C) volume. D) humidity. E) partial pressure.
Choose the defining characteristic of all arteries
A) They only carry blood back to the heart. B) They only carry blood away from the heart. C) They only carry deoxygenated blood. D) They only carry oxygenated blood.
Which of these is an INCORRECT matching of causative agent and disease?
a. Yersinia pestis: plague b. Salmonella: food poisoning c. Brucella: yellow fever d. Clostridium: gas gangrene