Genetics: Analysis and Principles
5th Edition
ISBN: 9780073525341
Author: Robert J. Brooker Professor Dr.
Publisher: McGraw-Hill Education
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Chapter 1, Problem 4EQ
Many organisms are studied by geneticists. Do you think each of the following species would be more likely to be studied by a transmission geneticist, a molecular geneticist, or a population geneticist? Explain your answer. Note: More than one answer may be possible for a given species.
A. Dogs
B. E. coli
C. Fruit flies
D. Leopards
E. Corn
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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.
Most 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?
A researcher examines genes for several proteins that are quite similar in both structure and function. He is interested in determining whether the genes form a multigene family and in working out which of the proteins arose first evolutionarily. What would be the BEST approach to take to address this question? Be careful to look for the best approach; some other approaches could also provide useful information while being less definitive.
A.
The researcher should sequence the genes and compare their sequences. The most similar genes are likely the most closely related, while those that have more base differences probably diverged earlier.
B.
The researcher should examine the functions of the proteins. Those with the most similar functions are the most closely related.
C.
The researcher should induce mutations in the genes to see how these affect the function. The most mutations needed to cause changes in the function of the protein, the older the gene.
D.
The…
Chapter 1 Solutions
Genetics: Analysis and Principles
Ch. 1.1 - 1. Which of the following is not a constituent of...Ch. 1.1 - 2. A gene is a segment of DNA that has the...Ch. 1.1 - The function of the genetic code is to a. promote...Ch. 1.1 - The process of transcription directly results in...Ch. 1.2 - Gene expression can be viewed at which of the...Ch. 1.2 - 2. Variation in the traits of organisms may be...Ch. 1.2 - 3. A human skin cell has 46 chromosomes. A human...Ch. 1.2 - 4. Evolutionary change caused by natural selection...Ch. 1.3 - Which of the following is not a model organism? a....Ch. 1.3 - A person studying the rate of transcription of a...
Ch. 1.3 - The scientific method involves which of the...Ch. 1 - Pick any example of a genetic technology and...Ch. 1 - Prob. 2CONQCh. 1 - Most genes encode proteins. Explain how the...Ch. 1 - Prob. 4CONQCh. 1 - Prob. 5CONQCh. 1 - Prob. 6CONQCh. 1 - Prob. 7CONQCh. 1 - Your textbook describes how the detrimental...Ch. 1 - Prob. 9CONQCh. 1 - Prob. 10CONQCh. 1 - Prob. 11CONQCh. 1 - Prob. 12CONQCh. 1 - 13. With regard to biological evolution, which of...Ch. 1 - 14. What are the primary interests of researchers...Ch. 1 - What is a genetic cross?Ch. 1 - Prob. 2EQCh. 1 - Prob. 3EQCh. 1 - 4. Many organisms are studied by geneticists. Do...Ch. 1 - Prob. 5EQ
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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
- A researcher examines genes for several proteins that are quite similar in both structure and function. He is interested in determining whether the genes form a multigene family and in working out which of the proteins arose first evolutionarily. What would be the BEST approach to take to address this question? Be careful to look for the best approach; some other approaches could also provide useful information while being less definitive. A. The researcher should sequence the genes and compare their sequences. The most similar genes are likely the most closely related, while those that have more base differences probably diverged earlier. B. The researcher should examine the functions of the proteins. Those with the most similar functions are the most closely related. C. The researcher should induce mutations in the genes to see how these affect the function. The most mutations needed to cause changes in the function of the protein, the older the gene. D. The researcher should…arrow_forwardImagine that you need to run an experiment that requires you to alter the current genetic make of your organism. You have two options: using nitrite or acridine orange. Which one would you choose considering the effectiveness of the treatment and why? State in no more than 3 sentences.arrow_forwardYou were taking care of your heffalumps, and you notice that a few of the new babies have a strange phenotype you’ve never seen before. They are polka-dotted! You decide to sequence samples from the polka-dot babies to find the mutation that caused this novel phenotype. What kind of genetics is this? a. Reverse Genetics b. Epigenetics c. Forward Genetics d. Genomics e. None of the abovearrow_forward
- Suppose that you could undergo genetic testing at age 18 for susceptibility to a genetic disease that would not appear until middle age and has no available treatment. a. What would be some of the possible reasons for having such a genetic test and some of the possible reasons for not having the test? b. Would you personally want to be tested? Explain your reasoning.arrow_forwardWrite a paragraph describing the evolutionary forces driving changes in the human genome. You can include evolutionary forces such as random genetic drift, mutation, migration, and natural selection. These forces would have long-term and short-term effects on coding and non-coding DNA, the abundance of transposable elements, and the birth and death of genes. You can focus on a subset of the human population, or the entire species.arrow_forwardThe 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_forward
- Which of the following is not true of a single nucleotide polymorphism?a. It is usually caused by a translocation mutation.b. It is usually caused by a nucleotide substitutionmutation.c. It may change the phenotype of an organism.d. It is inherited from parent to offspring.arrow_forwardWhich of the following organisms would be the most likely to have identical copies of the Alu sequence, repeated thousands of times in its genome? A. the Japanese pufferfish B. Escherichia coli C. the chimpanzee D. Fugu rubripes E. the mousearrow_forwardWhat did the Hershey / Chase experiments (above) demonstrate about the molecules responsible for genetic inheritance patterns in the T2 bacteriophage? A. the genetic material consists of carbohydrates, not RNA B. the genetic material consists of protein, not lipids C. the genetic material consists of DNA, not polypeptides D. the genetic material consists of protein, not DNA E. the genetic material consists of lipids, not polypeptidesarrow_forward
- To create genetically modified organisms (often called GMOS) scientists directly manipulate the genes of an organism, often by inserting or deleting one or more genes. The inserted gene is usually from another species. The purpose of this manipulation is to give the target organism and its offspring a new trait that improves it in some way. The improvement might, for example, give the organism higher vitamin content. The process is called genetic engineering. 1. What are genetically modified organisms? 2. What is Genetic engineering?arrow_forwardGenetic engineering has been a debatable topic in science as many people are only aware of its risk than benefits. Which among the scenarios below are the benefits of using GMOs? I. Genetic engineering in food can be used to alter genes in crops leading to new diseases in pants. II. Genetic engineering in crops such as rice, corn and tomato can be used to obtain new strains with better nutritional qualities. III. Genetic engineering in food can be used to create totally the same substances such as proteins and other food nutrients. IV. Genetic engineering can be used to increase the immunity to diseases in plants leading to uncontrolled transfer of the resistance genes to the harmful pathogens. V. Genetic engineering can restrict the diversity in organisms. VI. Genetic engineering can be used to suppress negative traits in human like certain genetic diseases. a. II, III, IV and VI b. II, III and VI c. I, II, IV and V d. I, III,…arrow_forwardWhat type of database is OMIM? https://omim.org/ A.OMIM is an weekly editorial that presents information on new genetic disorders.B.OMIM is database of all genetic disorders linked to the Y-chromosome.C.OMIM is a podcast on herbal remedies that promotes good omens.D.OMIM is an online database that has information on human genes and genetic disordersarrow_forward
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