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A new kind of tulip is produced that develops only purple and pink flowers. Assume that flower color is controlled by a single-gene locus and that the purple allele (C) is dominant to the pink allele (c). A random sample of 1000 tulips froma larg cultivated field yields 812 purple […]

Question: In a 1973-74 situation comedy “All in the Family”, the character Archie Bunker says: “Let me tell you something about beer: You can never buy beer, you can only rent it.” By that he meant that when you drink beer, you have to urinate a lot, and very soon. With […]

1. How many phenotypic classes may be generated from athree-point testcross?A. (3)=27B. (2)=4C. (2)3=8D. (3)2=9E. It cannot be predicted. 2.__________ bacterial strainsrequire nutritional supplements in order to grow in a minimalmedium.A. HeterotropicB. PrototrophicC. PhototropicD. AutotrophicE. Auxotrophic 3. An arg-strain of E. coli istransformed with a plasmid carrying the wild-type (arg+) […]

Henri tested the effects of a blood pressure reducing drug and found that blood pressure dropped significantly in those treated but did not change in an untreated control group. What is a reasonable conclusion from this experiment? A. The results support the hypothesis that the drug reduced blood pressure.B. It […]