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?
Q: 1. List three places outside of Africa where sickle-cell anemia is fairly common in the indigenous…
A: A population is described as a group of individuals of the same species living and interbreeding…
Q: the effects of a single allele (A2) on fitness in two populations of the same plant species,…
A: The average excess of fitness is a measure of the fitness of a particular allele (Say aA2). It can…
Q: Which of the following is a true statement concerning genetic variation? Select one: А. It must be…
A: Genetic variation is the genetic difference in the genes or DNA segments between the individuals of…
Q: 3. Researchers are investigating a newly discovered condition that greatly increases the likelihood…
A: Question - 3. Researchers are investigating a newly discovered condition that greatly increases the…
Q: Why do you think it is necessary for there to be variation in a population in order for evolution by…
A: Genetic variation is the diversity in gene frequencies. Genetic variation is the differences between…
Q: What are the diversity of mechanisms that can explain why genetic variation is maintained in…
A:
Q: Which graph shows a situation in which the effect of selection is the highest relative to the effect…
A: B graph represents the situation in which the effect of selection is highest relative to the effect…
Q: Based on literature survey of heritabilities of variable traits within a population, is the…
A: Molecular population genetics attempts to use population genetics concepts to understand genetic…
Q: The ________ amount of genetic diversity is found in ________ populations, and genetic diversity…
A: Genetic diversity can be defined as total number of genetic characteristics present in the genetic…
Q: 1.Describe the ways that gene number or gene position on a chromosome, might be altered? What…
A: Chromosomes are defined as the thread-like structures present inside the nucleus and will carry…
Q: 1. If an inherited traits displays variation in a population, then the trait is considered: 2. A…
A: Introduction Genetics:- It is the study of genes and tries to explain what they are and how they…
Q: One genotype in a very large and genetically variable population is favored in warmer than average…
A: The correct answer is option (B) genetic variation will decrease as the genotype with the highest…
Q: 1. Describe how the phenotype of individuals with sickle-cell disease influences how common the Hbs…
A: * sickle cell Anaemia is inherited genetic disorder in which the blood cells will attain sickle…
Q: 1. Besides a mutation for red color, what other mutation occurred in the lizard population? 2. How…
A: Theory of natural selection predicts that the organisms that are able to adapt to its changing…
Q: Phenotypic plasticity is the ability of an individual organism to express two or more genetically…
A: Any change in the physiology, morphology and behavior in an organism due to the environment around…
Q: 1. is a process by which organisms best fit for the environment are most likely to survive and…
A: Charles Darwin, the late great pioneer, is responsible for most of what we know today about…
Q: (1) A very large population of birds is living on an island in the Pacific ocean. (2) There are no…
A: Answer: HARDY WEINBERG PRINCIPLE = It is principle stating that the genetic variation in a…
Q: A population of gophers is very isolated, so no individuals can move in/out of the population. It is…
A: introduction Genetic drift is a mechanism of evolution in which allele frequencies of a population…
Q: 1a.) The frequency of a recessive disorder in a population is 1/400. What is the frequency of the…
A: Frequency of recessive disorder = 1/400 The population is under Hardy- Weinberg equilibrium, which…
Q: 3) Movement of alleles between populations is called _____ and results in _____. a.genetic…
A: The alleles are the alternative forms of a gene that are located on the same locus of a homologous…
Q: 1. Which parameter from the software you are using in lab this week must you adjust in order to…
A: The fundamental unit of heredity is the gene. They contain genetic information in the form of DNA,…
Q: What is the expected time to fixation in generations for a new mutation in a diploid population…
A: If a new mutation arises in a population of diploid organisms with a population size of 50 , the…
Q: 1. List and define four evolutionary processes change allele frequencies in population. Provide one…
A: The biological change of a species over time is referred to as evolution. Evolution helps organisms…
Q: 1. Imagine a population of 100 snails in which the shell colour is controlled by two alleles: B…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: Suppose that the frequency of a recessive allele is found to be 0.30. When the same population is…
A: Since you have asked multiple questions , we will solve the first question for you. If you want any…
Q: Describe how mutation-selection balance can act to maintain genetic variation in a population.
A: First of all let us understand what is mutation selection balance. It is a kind of equilibrium…
Q: Explain in 200 words how the Darwinian evolution can decrease or increase the frequency of an allele
A: Charles Darwin is a naturalist proposed that evolution happens by natural selection. He stated all…
Q: What happens to the genotypic frequencies from generation 1 to generation 5? 2.) What process is…
A: As per our policy we are answering the only first three sub parts of the question . For the rest of…
Q: The phenotype and genotype of a population is due to a mosaic of random and directed processes.…
A: Phenotype refers to the character of an individual which could be observed such as the color of…
Q: 2. The ability to tongue-roll is controlled by a dominant allele T. In a survey of 700 high school…
A: Introduction In population genetics Hardy-Weinberg principle states that the genotype frequencies of…
Q: If mutation introduces a new allele into a population, what will happen to the frequency of the…
A: The Hardy-Weinberg principle states that in a very large populations, the allele frequencies…
Q: Stages of natural selection What is the order of stages in natural selection? 1) Genetic variation…
A: Natural selection It is the process through which population of living organisms adapt and change.…
Q: 3. imagine you have been asked to design an experiment that would measure which of two factors…
A: Introduction :- The change in population mean brought about by selection (i.e response ) depends on…
Q: Fitness is most correctly a technical term. What does it mean? What two things do you suppose govern…
A: Evolution refers to a process of changes that occur in the heritable characters of living organisms…
Q: 1) What does the term Natural Selection mean? Select one: a.The number and relative frequency of…
A: Charles Darwin first introduced the term "natural selection". Through the concept of natural…
Q: Natural selection occurs only if there is both (1) variation in the genetic information between…
A: Evolution is a process through which cumulative changes occur at the genetic level in the…
Q: 5) A mutant red coat color allele (Yr) arises in island B and is present in the adult population in…
A: In population genetics, allele fixation refers to the transformation of a gene pool from one in…
Q: . Which of the following is not one of the key components to Natural Selection _________. A.…
A: Natural selection helps to increase the survival of an individual in its environment.
Q: 4. After a group of deer migrated to a cold mountain, the thin-furred deer and average-furred deer…
A: The process by which individuals with beneficial traits survive and reproduce more frequently than…
Q: ABO blood groups in humans are an example of discontinuous variation, whereas height is a example of…
A: In organisms, there are two types of genetic variation: continuous and discontinuous variation.…
Q: Is it possible for a recessive trait to be frequently expressed in a population? Why?
A: Since you have asked multiple question,, we will solve only the first question for you. If you want…
Q: Assume that a population starts with the frequency of R of 0.3. It then undergoes 3 generations of…
A: Godfrey Hardy and Wilhelm Weinberg combined forces and derived a theorem to calculate equilibrium in…
Q: Natural selection acts upon ____________________________, evolution upon…
A: Since you have asked multiple questions, we will answer only the first two questions for you. If you…
Q: Which of the following is TRUE in a population in Hardy-Weinberg equilibrium? O a) The population…
A: It is a principle that is applied in absence of evolutionary mechanism under the following…
Q: 2. In a population under Hardy-Weinberg equilibrium, the frequency of organisms possessing the…
A: The organisms present in any population will have genetic variation among them; some will have…
Q: 6)Which one of these statements about fitness is most accurate? a)Fitness is a measure of strength…
A: Fitness is simply book-keeping; survival and differential replica result from activity, that really…
Q: Which of the following statements correctly describes the conditions of microevolution? Select one:…
A: A microenvironment is dignified as the small (micro) areas separated from the larger ones by…
Q: 1) In smurfs, blue tails are dominant to red tails. You observe the following distribution in a…
A: The total population is= 270 BB= 214 Frequency = 214/270 = 0.79 p2= 0.79…
Q: 1 in 150 Americans have a rare, recessive, autosomal disorder. People with this disorder have a…
A: The Hardy-Weinberg equilibrium states that the relative frequencies of various kinds of genes in a…
Q: What is the role of variation in evolution – if heterozygosity is reduced, what happens to the…
A: Evolution involves genetic level changes in a population that leads to morphological and genetic…
1. The
Step by step
Solved in 2 steps
- The phenomenon in which chance events cause unpredictable changes in allele frequencies is called: a. gene flow. b. genetic drift. c. inbreeding. d. balanced polymorphism. e. stabilizing selection.1. Based on the class data from Experiment I, for each of the three populations, describethe effect of population size on genetic diversity over time. Your answer should touchon the magnitude of any genetic changes through time for each of the three populationsizes.1) What does the term Natural Selection mean? Select one: a.The number and relative frequency of alleles present in a particular population. b.The process through which individuals with certain traits tend to produce more surviving offspring that individuals without those traits. c. Any change in the hereditary material of an organism.
- 1.) Which statement below is not consistent with a population in Hardy-Weinberg equilibrium? A.) Genetic drift is occuring. B.) Random mating is occuring. C.) Population size is large. D.) Migration is not occuring. 2.) Sickel cell anemia is an autosomal recessive genetic disorder. Because individuals affected by sickle cell anemia have defective hemoglobin proteins, their blood cannot transport oxygen properly. There appears to be a relationship between the incidence of malaria and sickle cell anemia. Individuals with sickle cell anemia are carriers of the sickle cell allele have some resistance to malaria. Malaria is caused by the parasite Plasmodium and is transmitted between humans by mosquitoes.” If scientists are successful in significantly reducing or eliminating malaria, the best prediction for what will happen to the allele for sickel cell anemia in the population is that it will: A.)not be affected by the elimination by malaria. B.) increase as its selective advantage…1. Why do you think it is necessary for there to be variation in a population in order for evolution by natural selection to occur? 2. Why is it necessary for traits to be inherited for evolution to take place? 3. If a population is already well adapted to its environment, will most mutations be helpful or harmful? Explain.1. Which of these populations has all the characteristics needed to evolve by natural selection? A. a population of lizards may be brown or red. The temperature of the eggs determines the color of the baby lizards, and a brown parent lizard is equally likely to give birth to either color of offspring. B. a population of spiders includes individuals that build their webs in triangle shapes and others that build their webs in round shapes. They inherit their web-building strategies from their parents and all shapes are equally successful at catching insects. C. some gazelles are capable of running faster than others, a skill that is partially genetic Faster gazelles tend to live longer and have more offspring. A. Population A B. Population B C. Population C 2. Your friend asks you "If evolution is real, why aren't humans perfectly adapted by now! why do people still get heart disease and cancer and die?" Which of these would be an accurate response you could give? A. Evolution only…
- 3) Movement of alleles between populations is called _____ and results in _____. a.genetic equilibrium; decreased genetic differences between populations b.genetic drift; increased genetic differences between the populations c.gene flow; increased genetic differences between the populations d.genetic drift; decreased genetic differences between the populations e.gene flow; decreased genetic differences between the populations1. What kinds of limited resources can create a struggle between individuals in a population? 2. What kinds of variable traits within a population might natural selection act upon? Use a finch population as an example.2) The Hardy-Weinberg principle tells us what to expect when a sexually reproducing population is a.not evolving b.increasing in size c.changing in size d.evolving e.not evolving under natural selection specifically
- 1. Which among the following is NOT a principle of natural selection? a. The DNA sequence of the organism will change. b. The characteristics of organisms are inherited or passed from parent to offspring. c. Offspring vary among each other about their characteristics, and those variations are inherited. d. More offspring are produced than can survive. 2. Tawilis is a freshwater sardine endemic only in the Taal Lake in Batangas province. After several eruptions of the Taal volcano in the 21st century, the sardine population mentioned above rapidly dropped up to 82%. What best describe this scenario? a. mutation b. migration c. natural selection d. genetic driftIf the genotype frequencies in a population are 0.60 AA, 0.20 Aa, and 0.20 aa, and if the requirements of the HardyWeinberg principle apply, the genotype frequencies in the offspring generation will be: a. 0.60 AA, 0.20 Aa, 0.20 aa. b. 0.36 AA, 0.60 Aa, 0.04 aa. c. 0.49 AA, 0.42 Aa, 0.09 aa. d. 0.70 AA, 0.00 Aa, 0.30 aa. e. 0.64 AA, 0.32 Aa, 0.04 aa.Population genetics is the study of: how selective forces change the allele frequencies in a population over time the genetic basis of population-wide traits whether traits have a genetic basis the degree of inbreeding in a population
