Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
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Textbook Question
Chapter 19.8, Problem 1GR
Why don’t genetic markers on the Y chromosome undergo recombination? Why is this lack of recombination a necessity for these markers to be used in tracing migrations?
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Chapter 19 Solutions
Human Heredity: Principles and Issues (MindTap Course List)
Ch. 19.8 - Why dont genetic markers on the Y chromosome...Ch. 19.8 - Prob. 2GRCh. 19 - If you suspected that heterozygous carriers of a...Ch. 19 - If allele frequencies in the hemoglobin gene are...Ch. 19 - Prob. 1QPCh. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - Prob. 4QPCh. 19 - Prob. 5QPCh. 19 - How Can We Measure Allele Frequencies in...
Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - How Can We Measure Allele Frequencies in...Ch. 19 - Using the HardyWeinberg Law in Human Genetics...Ch. 19 - Prob. 10QPCh. 19 - Using the HardyWeinberg Law in Human Genetics In a...Ch. 19 - Prob. 12QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Prob. 15QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Prob. 17QPCh. 19 - Prob. 18QPCh. 19 - Measuring Genetic Diversity in Human Populations...Ch. 19 - Natural Selection Affects the Frequency of Genetic...Ch. 19 - Prob. 21QPCh. 19 - Prob. 22QPCh. 19 - The Evolutionary History and Spread of Our Species...Ch. 19 - Prob. 24QPCh. 19 - Genomics and Human Evolution The Denisovan genome...
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- What is linkage disequilibrium? How does it result in haplotypes?arrow_forwardWhat is interspecific hybridization. Give an example?arrow_forwardConstruct a chromosome map from the following charts showing crossover frequencies for linkage groups on autosomes. (this one is tricky due to the unusual recombinations Gene Combinations Recombination Frequency y/w 2.2 v/m 3.0 v/r 26.6 v/w 30.0 v/y 32.2 w/m 33.0 y/m 35.2 w/r 56.6arrow_forward
- How does the density of genes found on chromosome 22 compare with the density of genes found on chromosome 21, two similar-sized chromosomes? How does the number of genes on chromosome 22 compare with the number found on the Y chromosome?arrow_forwardRecombination frequencies between three loci in corn are shown in the following table: Loci Recombination frequency (%) R and W2 17 R and L2 35 W2 and L2 18 What is the order of the genes on the chromosome?arrow_forwardWhy is the term “crossing-over” appropriate for the exchange of DNA segments between homologous chromosomes?arrow_forward
- Construct a map of the chromosome, with the most accurate map distances, from the following recombination frequencies between individual pairs of genes: C –F 13%, V –F 20%, V –C 8%, S –F 4%, C –S 9%,arrow_forwardThe karyotype consists of the number and structure of the chromosomes.How do changes in the karyotype evolve?arrow_forwardWhy are interspecies hybrids usually sterile? How can the sterility of interspecies hybrids be overcome? How does the “triangle of U” illustrate this principle?arrow_forward
- There are three genes located on the same chromosome: G, H, and I. The recombination frequencies between each pair of genes were determined as follows: Gene Combination Recombination Frequency G/H 15.1% G/I 7.5% H/I 22.6% Which of the following gene maps demonstrate the correct sequence of these genes?arrow_forwardWhich of the following evolutionary changes is an illustration of horizontal gene transfer? the human point mutation which changes a T into an A in the sickle-cell b-globin gene B. origin of the tetraploid potato (Solanum tuberosum) from its diploid ancestor (Solanum stenotomum) non-disjunction of the duplicated human chromosome 21, causing Down’s syndrome D. the green sea slug acquiring the genes for making chlorophyll from the chloroplasts of green algae the single gene deletion which can reduce the variety of mating types in yeastarrow_forwardA neutral mutation arises in a diploid population of 10,000 individuals. Use this information to answer the following questions. a) What is the probability that the neutral allele goes to fixation? b) Assuming that the neutral mutation eventually goes to fixation, what is the expected time to fixation (in generations)?arrow_forward
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