Which of the following is NOT required in order for natural selection to occur in a population? O All of these are required for natural selection to occur O There is variation in phenotypes of individuals in the population O Individuals with some phenotypes produce more offspring than individuals with other phenotypes O Individuals in the population compete with one another for mates O Offspring inherit traits from their parents

Which of the following is NOT required in order for natural selection to occur in a population? O All of these are required for natural selection to occur O There is variation in phenotypes of individuals in the population O Individuals with some phenotypes produce more offspring than individuals with other phenotypes O Individuals in the population compete with one another for mates O Offspring inherit traits from their parents

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 10TYU: Which of the following is not true of natural selection? (a) natural selection acts to preserve...

See similar textbooks

Similar questions

Which of the following comparisons between natural and sexual selection between is FALSE? O Variation underlying traits must have a genetic basis and be heritable under both natural and sexual selection. Under sexual selection, fitness is defined in terms of offspring number, whereas under natural selection offspring number and survuval influence fitness. Both natural and sexual selection require variation in traits that affect fitness. Under natural selection, fitness is compared across all individuals within a population, whereas for sexual selection comparisons of fitness are only relevant among individuals within a given sex (i.e., males only or females only).
In a population of lizards, color is genetically determined. The current population has two two phenotypes: blue and yellow. Which of the following scenarios could result in evolution by migration? O A disease indiscriminately reduces the population by 90%. Birds are better able to see and therefor prey on blue lizards The population is joined by individuals from a nearby population that has an allele for a red phenotype. Females preferentially mate with individuals exhibiting the blue phenotype.
Which of the following is NOT one of the three features of evolution by natural selection? Offspring tend to resemble their parents because of heredity. O Individuals in populations show variation in their phenotypes. Organisms can induce the phenotypic changes they need to survive and reproduce in a given environment. O Some individuals survive and reproduce better than others, because of their phenotypes.
Which of the following statements about natural selection is not true? O Natural selection operates according to differential reproductive success of individuals. O Natural selection usually predominates in small population only. O The cumulative effects of natural selection gives rise to individuals that can survive in a specific environment. O Natural selection results in evolution when individuals with higher survival and reproductive rates pass on these traits to their offspring.
there are two alleles per genotype. evolutionary forces are operating on the population. O evolutionary forces are not operating on the population. In a rodent population, the size of individuals determines the size of seeds they eat. Larger seeds contain more nutrition, but only the largest individuals can handle the largest seeds. Larger individuals also require more nutrition. Currently, there is a wide distribution of both rodent and seed sizes. What event would most likely lead to disruptive selection? O Both the very large and the very small seeds become more common, while fewer intermediate-sized seeds become less common. O Both the very large and the very small seeds become less common, while fewer intermediate-sized seeds become more common. All seeds become less common, independent of size. O Larger seeds become more common, while smaller ones become less common. O Smaller seeds become more common, while larger ones become less common.
Which of the following statements is false? ONatural selection can alter a population's mean trait value O Natural selection usually decreases or maintains genetic variation Natural selection always favours rare genotypes O Natural selection acts on the phenotype
Which of the following is an absolute necessity for Natural Selection to work on a population? Check all that apply O Variation in the alleles and the trait-forms they produce O Sexual selection for a certain trait-form O Differential survival and reproduction of varied trait-forms Heritability of phenotypes (trait-forms)
Natural Selection is an evolutionary force that acts at phenotypic and genetic level. At the genetic level, which of the following statements is correct about the action of this force: O Selection is random and doesn't need genetic diversity in the population O Selection decreases the genetic diversity in the population O Selection is always negative and makes traits undesirable O Selection creates new alleles in the population
Which is the true statement about natural selection? O natural selection can cause some traits to become less frequent in a population over generations O natural selection causes random changes in trait frequencies in a population O natural selection can cause new versions of a trait to appear all the statements are correct
Four of the five factors below support the mechanism of natural selection. In contrast, the fifth factor blocks natural selection from occurring. Which one of the factors listed below does NOT lead to natural selection, but instead stops it from occurring? O Characteristics are inherited - passed from parent to offspring. O Organisms in a population are identical to each other. O There is competition among organisms in a population. O More offspring are born than can survive. O Organisms in a population vary in characteristics that affect how well they survive and reproduce. o o oO
Which of the following is likely to be most important in the evolution of two species from one population of another species? O some kind of barrier that physically divides the original species into two sub-populations a change in the environment such that one sub-population experiences differential natural selection O reduced performance of gametes (e.g., pollen) in crosses between sub-populations O reduced fitness of offspring resulting from crosses between sub-populations genetic divergence and cessation of gene flow between sub-populations
Which can bring new traits to a population and why? natural selection - because it increases the frequency of adaptive alleles in a population over time natural selection - because it makes new alleles natural selection and mutation because both increase the frequency of adaptive alleles in a population over time O mutation becaust makes new alleles mutation because it increases the frequency of adaptive alleles in a population over time O natural selection and mutation because both make new alleles 99+