Which of the following statements about genetic fitness and/or selection is false? Group of answer choices Individuals with low fitness have greater selection coefficients Fitness involves both relative viability and reproductive success Individuals with high fitness have greater selection coefficients Selection against recessive alleles tends to be slower overall than dominant alleles because of the survival in heterozygotes

Which of the following statements about genetic fitness and/or selection is false? Group of answer choices Individuals with low fitness have greater selection coefficients Fitness involves both relative viability and reproductive success Individuals with high fitness have greater selection coefficients Selection against recessive alleles tends to be slower overall than dominant alleles because of the survival in heterozygotes

Biology Today and Tomorrow without Physiology (MindTap Course List)

5th Edition

ISBN:9781305117396

Author:Cecie Starr, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Christine Evers, Lisa Starr

Chapter12: Processes Of Evolution

Section: Chapter Questions

Problem 9SQ

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Similar questions

Match the modes of natural selection with their best description. ____ stabilizing a. eliminates extreme forms of a trait ____ directional b. eliminates midrange forms of a trait ____ disruptive c. shifts phenotypes in one direction
Which of the following principles of selection are true for both the sickle cell and rock pocket mice examples? Check all that apply. (1 or more are correct). Group of answer choices A_The same genotype can have higher fitness in one environment, but lower fitness in another environment B-Some genotypes have higher fitness than other genotypes C-Some genotypes have lower fitness than other genotypes
Which of the following is likely to be observed if there has been a strong positive selection on a particular genetic locus within a population? Group of answer choices There will be a lot of variation in DNA surrounding the genetic locus in question within the population. There will very little variation in DNA surrounding the genetic locus in question within the population. You will see very low frequencies of the genetic locus in question
Under which of the following scenarios would variation be maintained? Selection acting on a dominant high fitness allele Selection acting on a recessive high fitness allele Selection favoring heterozygotes Selection acting against heterozygotes None of the above
Hardy Weinberg equilibrium in a population refers to Group of answer choices equal numbers of females and males. lack of mutations affecting the observed phenotypes. equal numbers of dominant and recessive alleles. unchanging allele frequencies in successive generations. proportional numbers of each genotype.
Which of the following is a TRUE statement? Non-random mating will increase the number of heterozygotes. Genetic drift within a population will increase genetic variation. Migration into the population will decrease genetic variation. Mutation will decrease genetic variation. Stabilizing selection will increase genetic variation.
Which of the following statements regarding selection is true? Incorrect answer - selection will always result in a change in allele frequencies. Correct Answer - The direction and magnitude of allele frequency change due to selection can be predicted. Question: Please explain in detail why the correct answer is correct and please explain why the incorrect answer is not correct.
What does it mean that an allele increases an organism's fitness? Choose one of the following: it increases the likelihood of that organism surviving and reproducing in their current environment it increases the health and strength of the organism it increases the likelihood of that organism surviving and reproducing in ANY environment
Which of the following is a form of a heritable trait that enhances an individual’s fitness? Adaptation Lineage Fitness
Which of the following is true about natural selection? Group of answer choices it acts on individuals it typically does not involve changes in genotype frequencies in a population it involves individuals willfully changing their genotype and/or phenotype in order to become better matched to their environment and leave more offspring it is a random process it involves humans increasing the frequency of desirable traits in a species by selecting which individuals breed
Selection confers a reproductive advantage to individuals based on their adaptations, and therefore causes the alleles carried by those individuals to increase in the population. Selection can be simulated by having your partner remove any three individuals of a particular suit as you deal the cards into a pile. The fitness of that variant is therefore 0.77 (10/13 survive), while the fitness of the other three variants remains at 1.0 (13/13 survive). Recalculate allelic (suit) frequencies after selection. 1. What is the effect of selection on reproduction, allelic diversity, and frequency? 2. What would happen if similar selection continued over several generations? Cite references.
Which of the following is a FALSE statement? Inbreeding non-random mating will increase the number of homozygotes. Directional selection will decrease genetic variation. Migration will decrease genetic variation between populations. Genetic drift will decrease genetic variation between populations. Mutation will increase genetic variation.