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 18, Problem 2Q
Summary Introduction
To review:
The reason as to why the male offsprings do not have the mutated allele.
Introduction:
A mutated allele is basically an altered form of a gene. It happens due to changes in the deoxyribonucleic acid (DNA) sequences and inactivation of protein function. The reason that male offspring do not have the mutated allele is due to the MCR (mutagenic chain reaction).
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Chapter 18 Solutions
Life: The Science of Biology
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- How many affected females and males does this pedigree show? (2) Who is the proband? (3) How many generations are included? (4) What kind of inheritance pattern is the disease-causing allele in this pedigree? Why? (5) Who have the same genotype as the proband? Why?arrow_forwardWhy are there so few Y-linked traits in humans?arrow_forwardThis pedigree exhibits a maternal effect. What is the genotype of each individual?arrow_forward
- An individual is heterozygous for a reciprocal translocation, with the following chromosomes: A • B C D E F A • B C V W X R ST • U D E F R ST • U V W X Q. Explain why the fertility of this individual is likely to be less than the fertility of an individual without a translocation.arrow_forwardMany people with mutated alleles that are associated with diseases, including some cancers, do not actually develop the disease. How is this possible?arrow_forwardSo why the barr bodies cannot be seen in the experiment?arrow_forward
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