Human Biology: Concepts and Current Issues (8th Edition)
8th Edition
ISBN: 9780134042435
Author: Michael D. Johnson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 19, Problem 2AWK
Why is it that the range of resting blood pressures of humans is best represented by a bell-shaped curve covering a continuous range rather than by two populations, one with high blood pressure and one with normal blood pressure?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The trait of blood pressure in humans has a frequency distributionthat is similar to a normal distribution. The following graph showsthe ranges of blood pressures for a selected population of people.The red line depicts the frequency distribution of the systolic pressuresfor the entire population. Several individuals with high bloodpressure were identified, and the blood pressures of their relativeswere determined. This frequency distribution is depicted with a blueline. (Note: The blue line does not include the people who wereidentified with high blood pressure; it includes only their relatives.)
What do these data suggest with regard to a genetic basis for highblood pressure? What statistical approach could you use to determinethe heritability for this trait?
In humans, people with at least one dominant RhD allele have a Rh positive blood type. People with a homozygous recessive genotype have a Rh negative blood type. In the
United States, 85% of the population is Rh positive and 15% are Rh negative. What are the values of p and q for the population in the United States (assuming that the American
population is at Hardy-Weinberg equilibrium)?
Should I try to rescue my sister who is drowning if there is a 75% chance that I will drown in the process? Assume that humans produce an average of 2 offspring in their lifetime. Remember that Hamilton’s rule is satisfied if rB>C.
What is the value of C in this situation:
What is the value of B in this situation:
What is the value of r in this situation:
Should I try to rescue my sibling? Yes or no
Chapter 19 Solutions
Human Biology: Concepts and Current Issues (8th Edition)
Ch. 19 - If you might be a carrier of a gene for an...Ch. 19 - Prob. 2QCCh. 19 - Prob. 1CRCh. 19 - Prob. 2CRCh. 19 -
3. Distinguish between genotype and phenotype.
Ch. 19 - Describe the contributions of Mendel to the field...Ch. 19 - Explain how alterations of chromosome number and...Ch. 19 - Prob. 6CRCh. 19 - Prob. 7CRCh. 19 - Describe what is meant by sex-linked inheritance.
Ch. 19 -
9. Explain why lethal diseases caused by dominant...Ch. 19 - Prob. 10CRCh. 19 - All of the following statements about homologous...Ch. 19 - Prob. 2TYCh. 19 -
3. Which of the following statements correctly...Ch. 19 - Prob. 4TYCh. 19 - Prob. 5TYCh. 19 - Prob. 6TYCh. 19 - Prob. 7TYCh. 19 - Which of the following results in the separation...Ch. 19 - Prob. 9TYCh. 19 - Prob. 10TYCh. 19 - What tool is used to determine the probabilities...Ch. 19 - Prob. 12TYCh. 19 - What is the basis for the tremendous genetic...Ch. 19 - Prob. 14TYCh. 19 -
15. Which of the following events or processes...Ch. 19 -
1. What fraction of the offspring of two...Ch. 19 -
2. Why is it that the range of resting blood...Ch. 19 - Prob. 3AWKCh. 19 - Geneticists often study patterns of gene transfer...Ch. 19 - Prob. 5AWKCh. 19 - Prob. 6AWKCh. 19 - Nondisjunction during meiosis can lead to the...
Additional Science Textbook Solutions
Find more solutions based on key concepts
A student moving out of a dormitory crouches in correct fashion to lift a heavy box of books. What prime movers...
HUMAN ANATOMY
Match the people in column A to their contribution toward the advancement of microbiology, in column B. Column ...
Microbiology: An Introduction
Why is it necessary to be in a pressurized cabin when flying at 30,000 feet?
Anatomy & Physiology
11. In the early 1800s, French naturalist Jean Baptiste Lamarck suggested that the best explanation for the rel...
Campbell Biology: Concepts & Connections (9th Edition)
Describe Mendels conclusions about how traits are passed from generation to generation.
Concepts of Genetics (12th Edition)
Single penny tossed 20 times and counting heads and tails: Probability (prediction): _______/20 heads ________/...
Laboratory Manual for Holes Human Anatomy & Physiology Fetal Pig Version
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
- The following frequencies were gathered in an African population affected with sickle-cell anemia: SS, 75.5%; Ss, 23.0%; ss, 1.5% (S = normal hemoglobin allele; s = mutant hemoglobin allele). Calculate the genotypic frequencies and determine whether this data represent a population that is in HWE.arrow_forward(i) State the Hardy-Weinberg principle.(ii) When there is a disturbance in the Hardy-Weinberg equilibrium, what would it result in?(iii) According to this principle, what is the sum total of all allelic frequencies?arrow_forwardHeterozygotes at the sickle-cell locus produce both normal and abnormal sickle-cell hemoglobin. When hemoglobin molecules are packed into a heterozygote’s red blood cells, some cells receive relatively large quantities of abnormal hemoglobin, making these cells prone to sickling. Explain how these molecular and cellular events lead to emergent properties at the individual and population levels of biological organization.arrow_forward
- Cerebellar abiotrophy (CA) is a recessive, genetic neurological disease found in the Arabian horse breed. If the incidence of this disease is about 1 in 400 Arabian horses, estimate the frequency of carriers in a population in Hardy-Weinberg equilibrium. Value of q²: 0.0025 Value of q: 0.05 Value of p: 0.95 Carrier Frequency: 0.095 How many horses would you expect to be carriers for cerebellar abiotrophy if the population consists of 582 Arabian horses? (Round to the nearest whole number and enter 2 digits.)arrow_forwardThe typical tail size for elephants is 150 cm, with a standard deviation of 10 cm. The typical tail size for mice is 7 cm, with a standard deviation of 3 cm. Do elephants or mice exhibit greater variability in tail size? Elephants, because CV = 15 > 2.3 Elephants, because SD = 10 cm > SD = 3 cm %3D Elephants, because = 150 cm > 7 cm O Mice, because CV = 0.43 > CV = 0.07 %3D %3Darrow_forwardWhich graph give a more accurate Km and Vmax from the following graphs: Line-weaver Burke plot, Eadie Hofstee plot, or Hanes Woolf plot?arrow_forward
- The term Asian American refers to people of Asian descent who trace their roots to more than 20 different countries in Asia, including Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, Philippines, Thailand and Vietnam. Given below are the leading causes of death for Asian Americans and other minority groups in the U.S. With this data, compare the leading causes of deaths of Filipinos and answer the following questions. 1. Is race/ethnicity a significant factor affecting these populations’ mortality? Howso? 2. What other considerations should be included in the discussion of the leadingcauses of deaths for these populations?arrow_forwardYou read a study in which 55 male participants (aged 55-70 years) were assessed for handgrip strength, and changes in cardiovascular health over a 2-year period. In the statistical analysis section of the paper you note that the researchers used regression analysis as the statistical procedure. The researchers identify the independent variable as handgrip strength, and the dependent variable as change in cardiovascular health. What do you think the research question could be?You read a study in which 55 male participants (aged 55-70 years) were assessed for handgrip strength, and changes in cardiovascular health over a 2-year period. In the statistical analysis section of the paper you note that the researchers used regression analysis as the statistical procedure. The researchers identify the independent variable as handgrip strength, and the dependent variable as change in cardiovascular health. What do you think the research question could be? Select one: a. Does handgrip strength…arrow_forwardA biologist set up an experiment to study 3 lizards. On the first day of his study, he measured the mass of the three spice mens. He made sure that all lizards weigh 100 grams. Then the lizards were put into individual cages with the following conditions. 1. What is the independent variable? 2. What is the dependent variable? 3. Which among the set ups is the control set up? 4. Which of the item is/are the experimental set ups? 5. Based on the result of the experiment, what conclusions can be drawn from this?arrow_forward
- Consider the gene that determines Rh blood type in human beings. This gene has two alleles (D, d) with D being dominant to d. Suppose that in a certain island population of 1000 individuals there are 250 individuals that have the genotype DD, 500 individuals that are heterozygotes, and 250 have the genotype dd. What are the genotype and allele frequencies in this population?arrow_forwardIn a hypothetical population, 16% have sickle-cell anemia. The population is in Hardy-Weinberg equilibrium. ( sickle-cell anemia is recessive) What is the frequency of the allele for sickle-cell anemia? What is the frequency of the allele for normal hemoglobin?arrow_forwardThere may be a number of possible alleles for a given gene within a population. In a multiple allele system the dominance relationships between the various alleles must be considered. One of the more familiar examples of a multiple allelic system is that of the human ABO blood group. The gene involved codes for a protein located on the outside of red blood cell membranes. Three alleles (IA, IB and i) determine whether the protein is present or absent and which form of the protein (if any) is present. The A and B alleles code for the A and B forms of the protein and are co-dominant with each other. The O allele (i) codes for no protein and is recessive to both A and B alleles. This means there are four possible phenotypes (blood types: A, B, AB, and O). This also means there are 6 possible genotypes: IAIA, IBIB, IAi, IBi, IAIB and ii. If you have the letter ‘O’ anywhere in any of your genotypes, you are doing it wrong. 6- A couple with the following blood types: the man has type AB and…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
How stress affects your body - Sharon Horesh Bergquist; Author: TED-Ed;https://www.youtube.com/watch?v=v-t1Z5-oPtU;License: Standard Youtube License