Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 20, Problem 12PIAT
Transgenic plants usually contain genes of bacterial plasmid origin. In a recent study, researchers designed a strategy that avoided using any plasmid genes. They transformed cells from a susceptible potato variety with a potato blight resistance gene cloned from a resistant variety. Next, to determine which plants from this group were also free of plasmid DNA (cloning vector) sequences, they performed PCR using primers specific for the plasmid. The positive control lane shows PCR amplification of plasmid DNA only, and the negative control lane shows an attempted PCR amplification of no added DNA. Based on the gel analysis of PCR products shown below, which plants only contain the potato gene? Explain your answer (See BioSkills 10 and BioSkills 6 for an overview of PCR and for help in reading a gel).
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9. Chicken combs in chickens is an example where you see interactions between genes.
See potential genotypes and phenotypes below. Which genotype, when mated to a
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walnut
(RRPP)
walnut
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Chapter 20 Solutions
Biological Science (6th Edition)
Ch. 20 - Prob. 1TYKCh. 20 - What is a plasmid? a. an organelle found in many...Ch. 20 - 3. Once the gene that causes Huntington disease...Ch. 20 - CAUTION The human genome size is 3 billion base...Ch. 20 - Prob. 5TYUCh. 20 - Prob. 6TYUCh. 20 - Prob. 7TYUCh. 20 - Prob. 8TYUCh. 20 - 9. Revolutionaries executed Nicholas II, the last...Ch. 20 - Prob. 10TYPSS
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