Concept explainers
Videos
Population geneticists are interested in the
- a. a deletion of a gene sequence.
- b. a duplication of a region of a gene.
- c. a rearrangement of a gene sequence.
- d. a single-
nucleotide substitution. - e. an inversion of a segment of a chromosome.
Introduction: Polymorphism can be defined as a process by which a particular trait displays several types of variations among a population. A polymorphic population shows more than one phenotype for that particular trait.
Answer to Problem 1TY
Correct answer: A single-nucleotide substitution is the most common type of genetic change that leads to polymorphism in a population. Hence, the correct answer is option d.
Explanation of Solution
Reason for correct answer:
Single-nucleotide substitution results in the change in genetic makeup due to a change in a single nucleotide. These changes are responsible for coding different types of amino acids, which in turn will code for different proteins. Different functional protein will lead to the generation of various types of phenotypes among the members of a population. So, they are the simplest and common type of genetic change that occur in a gene.
Option d. is given as “a single-nucleotide substitution”.
The most common type of genetic change that is responsible for causing polymorphism is single-nucleotide substitution. Hence, the correct answer is option d.
Reasons for incorrect answer:
Option a. is given as, “a deletion of a gene sequence”.
A deletion in gene sequence can cause variations in the genome. However, it is not the most common type of genetic change that results in polymorphism. Hence, option a. is incorrect.
Option b. is given as, “a duplication of a region of a gene”.
Duplication of a region of gene occurs in extreme cases of genome repairing process. It also occurs due to the various types of mutation at the time of replication of genetic material. So, it is not the most common type of genetic change. Hence, option b. is incorrect.
Option c. is given as, “a rearrangement of a gene sequence”.
A rearrangement of a sequence of gene can cause polymorphism to some extent but it occurs majorly in case of genome repair. So, it is not the most common type of genetic change. Hence, option c. is incorrect.
Option e. is given as, “an inversion of a segment of a chromosome”.
Process of inversion of a segment of gene sequence is not at all related with the process of polymorphism. Hence, option e. is incorrect.
Hence, the options a., b., c., and e. are incorrect.
Single-nucleotide substitution is responsible for polymorphism. It is the most common process which results in genetic changes among the gene sequences and leads to the process of polymorphism very frequently.
Want to see more full solutions like this?
Chapter 23 Solutions
BIOLOGY-TEXT
- Price of visit Number of visits $700 0 $600 [1 $500 2 $400 3 $300 4 00000 The Table blow gives the demand curve for doctor visits for Elena. If the price of a doctor's visit is $600, and Elena does not have health insurance, she will visit the doctor times. If Elena obtains 50% coinsurance (the company pays 50% of the medical bill, Elena pays 50%), then Elena will visit the doctor times. 1; 2 0; 3 0; 2 1;4 2; 1arrow_forwardP 200 150- 100 50 w/instrance/ w/insurance 2 100 Demand Assume that the white curve (labeled "Demand") represents an individual's true demand for this particular health care service. The coinsurance associated with insurance option 1 (in blue) is likely _. 0000 100% 25% 50% 0%arrow_forwardUse the figure below. Bob and Nancy have the same income and total utility.. willingness to pay for an insurance premium will be lower than because they are. risk- averse. Total utility Current utility Bob's utility Nancy's utility 0000 Bob; Nancy; less Nancy; Bob; less Nancy; Bob; more Bob; Nancy; more Current Income incomearrow_forward
- Consider the figure below. Suppose the true price of a health care service is P1. Suppose further that the individual has obtained insurance that has a fixed copayment for this particular service. The copayment is represented by price P2. represents the quantity of the service the individual would consume without insurance. quantity of the service the individual would consume with the insurance. Health Care Service represents the P. P₂ a Q1;Q2 Q2; Q3 Q1; Q3 Q3; Q1 Q2; Q1 फ f Q ८ g d h Q3\D 7Q 00000arrow_forwardThe table shows the utility Jordan receives at various income levels, but they do not know what their income will be next year. There is a 15% chance their income will be $25,000, a 20% chance their income will be $35,000, and a 65% chance their income will be $45,000. We know that Jordan is Income $25,000 Utility 2,800 30,000 3,200 35,000 3,500 40,000 3,700 45,000 3,800 ☐ none of the above 0 000 risk taker (lover) because their marginal utility of income is increasing risk neutral because their marginal utility of income is constant risk averse because their marginal utility of income is decreasing risk neutral because their marginal utility of income is decreasingarrow_forwardOOOO a d+e d a+b+c Consider the figure below. Suppose the true price of a health care service is P1. Suppose further that the individual has obtained insurance that has a fixed copayment for this particular service. The copayment is represented by price P2. The social loss from moral hazard if the individual has copayment P2 is represented graphically by the area(s): Health Care Service P. a No 4 ८ e g Q2 Q3 Darrow_forward
- OOO O The table shows the utility Jordan receives at various income levels, but they do not know what their income will be next year. There is a 15% chance their income will be $25,000, a 20% chance their income will be $35,000, and a 65% chance their income will be $45,000. We know that Jordan's expected income is. Their utility from their expected income is_ Income $25,000 Utility 2,800 30,000 3,200 35,000 3,500 40,000 3,700 45,000 3,800 $45,000; 3,800 $40,000; 3,700 $25,000; 2,800 $35,000; 3,500 $30,000; 3,200arrow_forwardQuestion 1 Classify the Bird Mark 7; how is it: Powered Triggered Cycled Classify brid mark 7 Powered: By gas (oxygen) Triggered: Negative Pressure, caused by the patient’s inspiratory effort Cycled: The machine stops delivering gas and allows for exhalationarrow_forwardHypothetical "pedigree" for Sickle Cellarrow_forward
- would this be considered a novel protein and if not how can I fix it so it is and can you draw the corrections pleasearrow_forwardIn as much detail as possible, hand draw a schematic diagram of the hypothalamic-pituitary- gonad (HPG) axis in the human male. Be sure to include all the relevant structures and hormones. You must define all abbreviations the first time you use them. Please include (and explain) the feedback loops.arrow_forwardA negligence action was brought by a mother against a hospital on behalf of her minor daughter. It alleged that when the mother was 13 years of age, the hospital negligently transfused her with Rh-positive blood. The mother's Rh-negative blood was incompatible with and sensitized by the Rh-positive blood. The mother discovered her condition 8 years later during a routine blood screening ordered by her healthcare provider in the course of prenatal care. The resulting sensitization of the mother's blood allegedly caused damage to the fetus, resulting in physical defects and premature birth. Did a patient relationship with the transfusing hospital exist?arrow_forward
Human Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
Biology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage Learning
Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning