Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 16, Problem 4MC
Which of the following statements about mutations is False?
- a. Mutations at a given chromosomal site are rare.
- b. The genomes of most people contain some mutant alleles that are present in neither parent.
- c. Mutations are the ultimate source of genetic variability.
- d. Beneficial mutations are more likely to occur when an organism’s needs change.
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Students have asked these similar questions
Which of the following statements best describes the outcome of a mutation?
a.
A mutation always results in a mutant genotype
b.
A mutation always results in a mutant karyotype
c.
A mutation always results in a mutant phenotype
d.
A mutation always results in a mutant protein
With regard to human cancer cells, which of the following statements is true?
A. Cancer cells within one tumor usually do not share common mutations
B. Cancer cells generally have lost the ability to divide
C. Oncogenes are non-human genes not related to normal genes in the human genome
D. Mutations in DNA repair genes result in an increased chance of getting cancer.
Usually, the mutant alleles studied in Drosophila experiments are recessive because:
A.
they are difficult to create.
B.
they are loss of function mutations.
C.
they do not survive as long as dominant alleles.
D.
they do not occur in wild-type flies.
Chapter 16 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 16.1 - define evolution in terms of concepts from...Ch. 16.1 - define equilibrium population and describe the...Ch. 16.2 - Evolution of a Menace The mutant alleles that...Ch. 16.2 - describe how mutation, gene flow, genetic drift,...Ch. 16.2 - A flu vaccination stimulates your immune system to...Ch. 16.2 - If it were true that mutations do occur in...Ch. 16.2 - Explain how the distribution of genotypes in...Ch. 16.2 - If a population grows large again after a...Ch. 16.2 - Prob. 4TCCh. 16.3 - describe why selection of phenotypes can affect...
Ch. 16.3 - A team of phys clans treated four patients with...Ch. 16.3 - If we studied a population of bighorn sheep and...Ch. 16.3 - explain how competition and predation influence...Ch. 16.3 - When selection is directional, is there any limit...Ch. 16.3 - Prob. 3CYLCh. 16.3 - Microbiologists have discovered that alleles...Ch. 16.3 - compare and contrast directional selection,...Ch. 16 - In North America, the average height of adult...Ch. 16 - The ______ provides a simple mathematical model...Ch. 16 - The alleles responsible for antibiotic resistance...Ch. 16 - What is a gene pool? How would you determine the...Ch. 16 - By the 1940s, the whooping crane population had...Ch. 16 - Different versions of the same gene are called...Ch. 16 - Stabilizing selection on a trait tends to a. make...Ch. 16 - Define equilibrium population. Outline the...Ch. 16 - An organisms ______ refers to the specific alleles...Ch. 16 - An adaptation is a. any trait that arises from a...Ch. 16 - How does population size affect the likelihood of...Ch. 16 - A random form of evolution is called ________....Ch. 16 - Which of the following statements about mutations...Ch. 16 - If you measured the allele frequencies of a gene...Ch. 16 - Competition is most Intense between members of...Ch. 16 - Genetic drift occurs a. when different phenotypes...Ch. 16 - People like to say that you cant prove a negative....Ch. 16 - The evolutionary fitness of an organism is...Ch. 16 - Describe the three ways in which natural selection...Ch. 16 - What is sexual selection? How is sexual selection...
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- Are the following examples a description of genetics at the molecular, cellular, organismal, or populational level? A. People with cystic fibrosis have lung problems due to a buildup of mucus in their lungs B. The mutant CF gene encodes a chloride transporter that doesn't transport chloride ions very well. C. A defect in the chloride transporter causes a salt imbalance in lung cells.arrow_forwardWhich of the following is true regarding understanding the results of genetic testing? A. If the test shows that you have the allele for a genetic disorder, you may be able to reduce your risk of developing that disorder with lifestyle changes. B. If the test shows that you have the allele for a genetic disorder, you will, eventually, show symptoms of that disorder. C. Because we know the functions of all the genes in the human genome, genetic tests can give you complete and accurate information regarding your medical health. D. If the test shows that you do not carry the allele for a particular disorder, there is no chance that you will get that disorder.arrow_forwardWhich of the following statements is true about the effects of mutations in somatic cells and gametes? A. Only mutations in gametes can affect future generations. B. Only mutations in somatic cells can affect future generations. C. Neither mutations in somatic cells or gametes can affect future generations. D. Mutations in both somatic cells and gametes can affect future generations.arrow_forward
- Which of the following statements about the differential expression of human genes is correct? A. Differential expression does not occur during embryogenesis (development of the embryo). B. The unused genes in differentiated cells no longer retain the potential to be expressed. C. Gene expression patterns of all cells are identical. D. Every cell nucleus contains the complete genome established in the fertilized egg.arrow_forwardIn general, all mutations can be considered harmful, because most genetic systems are already optimized to work correctly and efficiently. A. True b. False; mutations are considered harmful only if they have a direct effect on the ability of cells to synthesize DNA c. False; some mutations are harmful, and some are considered beneficialarrow_forwardWhich of the following is the definition of the term named Genes? a.Refers to genes that have identical alleles b.Genetic constitution of an organism c.Alternative form of a gene d.Trait expressed in the F1 generation e.Fundamental physical and functional unit of heredity f.Physical expression of traits of an organismarrow_forward
- Which of the following is false? a. The color of a fruit fly's eyes is a trait. b. The instructions for producing a trait are found in a gene that controls the physical expression of that trait. c. A gene can have different alleles that can specify different traits, such as red or brown eye color. d. The trait is influenced by the gene, independent of the environment. e. By studying the patterns of traits over generations of an organism, the genetic composition of an organism can be deduced.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_forwardIf two mutational events are sufficient to cause some forms of cancer, what distinguishes familial forms (i.e. those that "run in families") of cancer from spontaneous cases? A. spontaneous forms inherit both mutations B. familial forms are caused by chance alone C. familial forms inherit one mutation D. there is no difference E. none of the abovearrow_forward
- The basic units of information that encode the proteins needed to grow and function as a living organism are called: Select one: a. Chromosomes O b. Genes c. Mutations O d. Cells O e. Mendel's postulatesarrow_forwardSelect the TRUE statement about genetic engineering?" A. The process of direct manipulating of an organism's genes using biotechnology. B. The manipulation of organisms or their components to make useful products. C. Utilizing the natural biological processes of the existing living systems. D. The process of transferring genetic traits through cross-breeding.arrow_forwardWhich of the following statements best describe the equation P = G + E + (G X E)?* a. The phenotype is the sum of the genotype and the environment. b. The phenotype of an organism is determined by its genetic traits. c. The phenotype is the total characteristics displayed by an organism that results from the expression of the genes as well as the influence of environmental factors. d. The phenotype is the observable and measurable characteristics of an organism as a result of the interaction of the genes of the organism, environmental factors, and random variation.arrow_forward
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