Human Heredity: Principles and Issues (MindTap Course List)
Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Chapter 19, Problem 18QP
Summary Introduction

To determine: The founder principle in case of Ashkenazi Jewish Women infected by BRCA1 gene.

Introduction: The concept of founder effect was initially given by Ernst Mayr in the year 1942. The BRCA1 gene is a gene that is responsible for causing breast cancer in women.

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Comparisons between human and chimpanzee genomes indicate that a gene that may function as a wild-type or normal gene in one primate may function as a disease-causing gene in another [The Chimpanzee Sequencing and Analysis Consortium (2005). Nature 437:69–87]. For instance, the PPARG locus (regulator of adipocyte differentiation) is a wild-type allele in chimps but is clearly associated with Type 2 diabetes in humans. What factors might cause this apparent contradiction? Would you consider such apparent contradictions to be rare or common? What impact might such findings have on the use of comparative genomics to identify and design therapies for disease-causing genes in humans?
33 As 33 As Light skin pigmentation Cholera Arsenic-rich Cold Elevation Short Lactose tolerance Marine Malaria diet resistance resistance environment climate stature EVOLUTION 4e, Figure 6.28 2017 Sinauer Associates, Inc. c) Recently, scientists have identified a mutation that is found at high frequency in Finnish populations, located in northern Europe where the winter is very cold. This mutation is believed to be a "cold sensitive" allele that warns people of extreme cold temperatures. Could this allele have undergone a "selective sweep", if it had suddenly appeared in this northern population of humans? How would such a selective sweep be detected with genome data?
THE MOLECULAR GENETICS OF CYSTIC FIBROSIS and of The following is the base sequence of DNA that codes for amino acids 506-510 of the protein that regulates the chlorine channels in the cell membrane. This protein contains a total of 1476 amino acids so this is a small part of the entire gene. DNA Template Strand: 3'TAGTAGAAACCACAA5' 1. What is the minimum number of DNA nucleotides in this whole gene? 2. What is the sequence of bases on the strand of DNA that is complementary to the template strand? 3. What mRNA will be formed from the template strand of DNA? 4. What amino acids will this mRNA code for? 5. If the 6th, 7th and 8th bases in the template strand of the DNA are removed, rewrite the new template strand below. 6. When the template strand of the DNA is changed, this is referred to as a mutation. What kind of mutation is this? 65
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Mitochondrial mutations; Author: Useful Genetics;https://www.youtube.com/watch?v=GvgXe-3RJeU;License: CC-BY