Biology (MindTap Course List)
11th Edition
ISBN: 9781337392938
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 16.6, Problem 1C
Summary Introduction
To determine: The reason why it is incorrect to assume that certain individuals or populations carry most of the abnormal alleles found in humans.
Concept introduction: The inheritance patterns for the inheritance of traits are autosomal dominant or recessive, or sex-linked. The traits due to the genes on autosomes are inherited in a simple Mendelian pattern; they can be dominant or recessive. An autosomal dominant trait appears in individuals with a dominant allele; they can be either homozygous or heterozygous. An autosomal recessive trait appears in individuals that are homozygous for the recessive allele.
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1. Explain in 200 words how the Darwinian evolution can decrease or increase the frequency of an allele( or a more complex heritable trait, for that matter).
3) The ability to curl ones’ tongue up on the sides (T) is dominant to not being able to roll your tongue (t).
a. A woman who can roll her tongue marries a man who cannot. The first child has the same phenotype as the father, what are the genotypes of the mother, father, and this child?
b. What is the probability that the second child won’t be able to roll it’s tongue?
Q.No.1. Can you always ascertain an organism’s genotype for a particular locus if you know its phenotype? Conversely, if you are given an organism’s genotype for a locus, can you always reliably predict its phenotype? Explain.
Chapter 16 Solutions
Biology (MindTap Course List)
Ch. 16.1 - Distinguish between karyotyping and pedigree...Ch. 16.1 - Prob. 2LOCh. 16.1 - Prob. 3LOCh. 16.1 - Prob. 1CCh. 16.1 - Prob. 2CCh. 16.1 - Describe two ways in which genome database...Ch. 16.1 - Prob. 4CCh. 16.2 - Explain how nondisjunction in meiosis is...Ch. 16.2 - Distinguish among the following structural...Ch. 16.2 - Prob. 6LO
Ch. 16.2 - VISUALIZE Draw a simple sketch illustrating how...Ch. 16.2 - Prob. 2CCh. 16.2 - Prob. 3CCh. 16.2 - Prob. 4CCh. 16.3 - State whether each of the following genetic...Ch. 16.3 - Which of the following genetic diseases is/are...Ch. 16.3 - Prob. 2CCh. 16.3 - Prob. 3CCh. 16.4 - Briefly discuss the process of gene therapy,...Ch. 16.4 - Prob. 1CCh. 16.5 - State the relative advantages and disadvantages of...Ch. 16.5 - Distinguish between genetic screening programs for...Ch. 16.5 - Prob. 1CCh. 16.5 - Prob. 2CCh. 16.6 - Prob. 11LOCh. 16.6 - Prob. 1CCh. 16.6 - CONNECT To be expressed, an autosomal recessive...Ch. 16.6 - Prob. 3CCh. 16 - Prob. 1TYUCh. 16 - An abnormality in which there is one more or one...Ch. 16 - The failure of chromosomes to separate normally...Ch. 16 - Prob. 4TYUCh. 16 - Prob. 5TYUCh. 16 - Prob. 6TYUCh. 16 - Prob. 7TYUCh. 16 - Prob. 8TYUCh. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Examine the following pedigrees. Which is the most...Ch. 16 - Prob. 11TYUCh. 16 - SCIENCE, TECHNOLOGY, AND SOCIETY Imagine that you...Ch. 16 - A common belief about human genetics is that an...Ch. 16 - Prob. 14TYUCh. 16 - EVOLUTION LINK Explain some of the evolutionary...
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- The phenotype of individuals heterozygous for ________ alleles comprises both homozygous phenotypes. a. epistatic b. codominant c. pleiotropic d. hybridarrow_forwardThe good genes hypothesis is a theory that explains what? why more fit individuals are more likely to have more offspring why alleles that confer beneficial traits or behaviors are selected for by natural selection why some deleterious mutations are maintained in the population why individuals of one sex develop impressive ornamental traitsarrow_forward2. Be able to compare and contrast (discuss similarities and differences in) in your own words the terms genotype and phenotype, wild-type and mutant phenotypes. Step by step.arrow_forward
- 1.Which among the following statements is INCORRECT? A.Phenotype is the pair of genes that carries the genetic makeup of an organism B.Homozygous is a combination of two dominant or two recessive allele C.A recessive allele must be received from both parents to bring about a recessive phenotype D.Heterozygous is a combination of one dominant allele and one recessive allelearrow_forward1. The phenotype and genotype of a population is due to a "mosaic" of random and directed processes whereby some have to do with history and others related to adaption and other factors. Why is this so?arrow_forward3. A couple just had a baby, who has type-O blood. Upon learning the baby’s blood type, the father becomesinfuriated and accuses the mother of cheating on him. The mother has type-A blood and the father has type-Bblood. Knowing that the allele for type-O is recessive, answer the following questions.a. What is the relationship between the IA, IB, and i alleles?b. Is the father right? Or is he falsely accusing the mother? Explain. Include the genotypes of the parentsand the genotypes of their potential children.arrow_forward
- 4. If a certain type of trait in a family or clan is considered by most people to be “better” or “ideal”, is itpossible to maintain the same type of trait in the succeeding generations? If so, how?arrow_forwardQ Every single cell in your body contains the same genetic information. Determining right and wrongarrow_forward14. Genotype can best be described as: the description of the genes carried by an individual the description of the alleles carried by an individualarrow_forward
- 1)Explain the differences between the following terms:-Gene, allele, and locus-Genotype versus phenotype- Dominant versus recessivearrow_forward1. The frequency of a recessive disease is 9%. What is the frequency of the allele that causes s the disease? a) What is the frequency of the dominant allele? b) What is the frequency of the carriers (heterozygotes) of the disease?arrow_forward4.) You carry two alleles for every trait. Where did these traits come from?arrow_forward
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