Life: The Science of Biology
11th Edition
ISBN: 9781319010164
Author: David E. Sadava, David M. Hillis, H. Craig Heller, Sally D. Hacker
Publisher: W. H. Freeman
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Chapter 12.4, Problem 1R
Summary Introduction
To review:
Genetic linkage and its effects in genetic crosses.
Introduction:
The genes present close to each other on a chromosome can become physically linked. This is known as genetic linkage. This phenomenon was first discovered by Thomas Hunt Morgan in the fruit fly Drosophila melanogaster.
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Explain how experimental crosses can demonstrate linkage.
Explain the Limitations of two-point crosses
Explain how linkage affects the outcome of crosses?
Chapter 12 Solutions
Life: The Science of Biology
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- Explain what nondisjunction is, and give two examples of phenotypes that can result from it.arrow_forwardApply the product rule and sum rule appropriately when predicting the outcomes of genetic crosses.arrow_forwardIn making genetic crosses, why is it important to identify the gametes that each individual can contribute?arrow_forward
- How does a Punnett square helppredict the genotypes and phenotypes of agenetic cross?arrow_forwardTo build a genetic map, how many types of crosses will be required to perform if you have three genes to map? Explain.arrow_forwardA X cross, is conducted when an organism with the dominant phenotype and unknown genotype is crossed with a Y individual in order to identify the unknown genotype.arrow_forward
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