Human Heredity: Principles and Issues (MindTap Course List)
11th Edition
ISBN: 9781305251052
Author: Michael Cummings
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 19, Problem 22QP
a.
Summary Introduction
To determine: The genetic definition of the term race.
Introduction: The hierarchical system of classification classifies and groups the living organisms into a different level based on the characteristics and properties they have in common. The basic unit of classification in this system is the species.
b.
Summary Introduction
To explain: Whether modern humans can be divided into races or not.
Introduction: The hierarchical system of classification classifies and groups the living organisms into a different level based on the characteristics and properties they have in common. The basic unit of classification in this system is the species.
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
A. Explain which force of evolution is seen here by a hybrid bird landing on an island that is not its home and breeding with the indigenous population.
B. Explain which force of evolution randomly chooses an individual from a larger gene pool to form a new, smaller population with less genetic variety.
Please help with the following:
How does penetrance differ from expressivity in genetics?
A. Penetrance is the percentage of individuals with a specific genotype that exhibit the expected phenotype while expressivity is the degree to which a phenotypic character is expressed.
B. Penetrance is the degree of lethality of a specific genotype while expressivity is how frequently that genotype is seen in the population.
C. Penetrance is the presence of more than two alleles at a locus within a group of individuals while expressivity is the influence of sex on which alleles express themselves.
D. None of the above.
E. Penetrance refers to the paternal effects of a gene while expressivity refers to the maternal effects of a gene.
About 9 percent of Caucasian males are color-blind andcannot distinguish red-colored from green-coloredobjects.a. Offer one genetic model for color blindness.b. Explain why and how color blindness has reached afrequency of 9 percent in this population
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...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- population is black in colour but about 1/4 of them are white. gene (B) that produces an enzyme that converts a pigment molecule to produce the Black colour. There are 2 alleles of this gene - the dominant B and the recessive b. DNA analysis shows that black individuals have either a BB or Bb genotype and that white individuals have a bb phenotype. However, you have discovered that a small percentage of White individuals have either a BB or Bb genotype. Explain two reasons that could explain this apparent anomaly. They have a BB or Bb genotype but a white phenotype.arrow_forwardHumans are 99.9% genetically similar. Why is it important to know that the 0.1% of differences are not distributed among racial groups and that race in not a useful marker biological difference? How are the concepts of race and genetic ancestry different? Do you think this material should be covered in a Genetics course? Which examples discussed were most useful for you, if any? Do you have any other thoughts or suggestions for learning about this material? What is the most frequent source of new genes in eukaryotic genomes?DuplicationLateral gene transferTransposable elementsNew mutationsRecombination What's the minimum number of tRNAs needed to translate Phenylalanine (Phe) based on the genetic code and wobble rules? 1 2 3 4 5 What are two possible anticodon sequences for tRNA's that are charged with Phenylalanine (Phe)? 3' AAU 5' and 3' GAA 5' 3' AAA 5' and 3' AAG 5' 3' UUG 5' and 3' CUG 5' 3' GAA 5' and…arrow_forwardMost of the genetic information we will get from our genome will not be hard evidence that we will or we won’t get a disease but is rather only probabilistic evidence. a. What does this mean? b. Why might knowing a single gene not tell you if you will get a particular condition?arrow_forward
- . Explain how Mendelian genetics is compatible with the fact that many traits, such as human height and skin colors, exhibit continuous variation.arrow_forwardA. Choose which represents descent with modification, A or B? B. Explain your choice, why is it considered a descent with modification?arrow_forwardDiscuss the role of mutation in the origin of genetic polymorphisms. Suppose that a genetic polymorphism involves two alleles at frequencies of 0.45 and 0.55. Describe three different scenarios to explain these observed allele frequencies. You can propose that the mutations that produced the polymorphism are neutral, beneficial, or deleterious.arrow_forward
- A certain form of congenital glaucoma is caused by an autosomalrecessive allele. Assume that the mutation rate is 10-5 and that peoplewith this condition produce, on the average, only about 80% of theoffspring produced by people who do not have glaucoma.a. At equilibrium between mutation and selection, what will the frequencyof the gene for congenital glaucoma be?b. What will the frequency of the disease be in a randomly matingpopulation that is at equilibrium?arrow_forwardGiven: Green, red, blue, yellow, orange marbles Assuming wethat the marbles are species of praying mantises and that the newenvironment consists of greenery and many bright red and white flowers. Question: What would you expect to happen to the allele frequency for the followingforms of the gene: 1. Blue 2. Green 3. Red 4. Orange 5. Yellowarrow_forwardScientific studies have shown that the majority of human genetic differences worldwide exist within groups (or races) rather than between groups. True or false?arrow_forward
- Heterozygote advantage is an interesting condition in those individuals who have one of each allele (dominant and recessive) have a higher survival rate than those individuals who are either homozygous dominant or homozygous recessive. Sickle-cell anemia is such a genetic disease associated with the recessive allele. Normal homozygous individuals (SS) have normal blood cells that are easily infected with the malarial parasite. Thus, many of these individuals become very ill from the parasite and many die. Individuals homozygous for the sickle-cell trait (ss) have red blood cells that readily collapse when deoxygenated. Although malaria cannot grow in these red blood cells, individuals often die because of the genetic defect. However, individuals with the heterozygous condition (Ss) have some sickling of red blood cells, but generally not enough to cause mortality. In addition, malaria cannot survive well within these "partially defective" red blood cells. Thus, heterozygotes tend to…arrow_forwardWhether or not a person has cheek dimples is an autosomally inherited character due to variation in a single gene. Having cheek dimples (D) is dominant to not having cheek dimple s (d).In a population of 28,000 Greek children, 3,500 had cheek dimples and the rest did not. Assuming that the population is in Hardy-Weinberg equilibrium, A. what are the frequencies of the two alleles? B. how many of the children do you expect to be heterozygous?arrow_forward.. Nowadays, newborn babies are required to be tested for phynylketonuria (PKU), an autosomal recessive genetic disorder. If untreated, individual homozygous for PKU suffer mental retardation. In a recent year, 4 PKU babies were detected out of 126,000 tested. Assuming Hardy-Weinberg conditions, what is the frequency of the PKU gene in this population (Give your answer in decimal number with 3 decimal places)?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning
Genetic Variation and Mutation | 9-1 GCSE Science Biology | OCR, AQA, Edexcel; Author: SnapRevise;https://www.youtube.com/watch?v=bLP8udGGfHU;License: Standard YouTube License, CC-BY