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page3 - 11 The harmful(deleterious allele that causes...

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Unformatted text preview: 11. The harmful (deleterious) allele that causes sickle cell disease in humans is prevalent among Africans because: \A wide ’Freqlutjnt in fltfi COm POPW - - .many of them are malnourished. it confers resistance to materia' In heterozygous individuals. , _ _ _ , . c. it enhances the abii ”Ity of red blood cells to take up oxygen. high“ 0 Zyaost’ty d. it iengthens the lifespan of red blood cells. ‘ ' . . e. it is. linked to other genes that increase fertility. , _ | 2 Th f b t' l : uflOlU/nmg fitneaj 3.1 ewin o a a Is one ousto: - . ~ @flhe wing gfa butterfly 09 :. hiqh mOfiOLhTY t he front tin of a trout c. your arm d. your leg e. achicken leg ' - fl {Ea n" ... an: i. gay , IL;- At the end Miller—Urey experiment 13 different amino acids were found In the collecting vial of “Q53 experimental apparatus This demonstrated. .:what that basic biotic monomers can be created without living organisms “Bfthat large macromolecules can be created through complex proceSses c. that molecules can self—catalyze their own production d. that simpie organic molecules are made spontaneously 14. The amniotic egg evolved as a solution to the problem of: .7 predation by aquatic organisms @ laying and hatching eggs on land 0. increasing body size d. repeated extinction events e. mineral storage 15. Phyletic evolution differs from branching evolmion in that: a it is always much more rapid b it only occurred during the Paleozoic it does not result In an increase in the number of species .it :8 always much more gradual e. it refers to the evolution of new phyla of organisms ‘16. The recent discovery of fossii embryos of Precambrian antmais lends strong support to the ea that. ‘ éthe ancestors of some modern phyla evolved prior to the Cambrian explosion l b none of the known fossil Precambrian animals were ancefiors of modern phyla ' ‘ c. predation was not important In the Precambrian d oxygen levels were relatively tow" In the Precambrian e. animals grew more slowiy in the Precambrian @uring the Great American Biotic Interchange the number of species from the north that /_ ed south exceeded those coming the other direction. probably because: -- - Q North America is 50% larger than South America Ab‘lt Was uphill to the north Kthe North American species were faster ‘dsNorth America Is nearly 25% smaller than South America e. South America had more trees ...
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