
Biology: The Unity and Diversity of Life (MindTap Course List)
15th Edition
ISBN: 9781337408332
Author: Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
thumb_up100%

Transcribed Image Text:QUESTION 18
This phenomenon causes a particular gene to be abundant in a gene pool even though it may not be adaptive:
O natural selection
O mutation
O gene flow
O genetic drift
QUESTION 19
This phenomenon is an exchange of genetic material when two previously isolated populations of the same species come into contact:
O natural selection
O mutation
O gene flow
genetic drift
QUESTION 20
How do new species arise, according to the theory of natural selection?
O when an old species goes extinct, a new species arises to take its place
O individuals in a population pass on new traits they have acquired during their lifetimes
O two new species spontaneously branch off from ancestor populations from time to time
O if a population is reproductively isolated in a sufficiently different ecosystem for an extended period of time, it will develop adaptations that will
eventually render it incapable of interbreeding with its host population
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution
Trending nowThis is a popular solution!
Step by stepSolved in 4 steps

Knowledge Booster
Learn more about
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
- Mountain gorillas are a highly endangered primate species, with 800 or so individuals surviving in the two remaining populations. A recent sampling of mountain gorilla genomes revealed a very low level of genetic diversity. Explain why a decline in genetic diversity often accompanies a decline in population size.arrow_forwardWhich is required for evolution to occur in a population? a. random mating b. selection pressure c. gene flow d. none of the abovearrow_forwardMatch the evolution concepts. ____ gene flow a. can lead to interdependent species ____ sexual selection b. changes in a populations allele frequencies due to chance alone ____ mutation c. alleles enter or leave a population ____ genetic drift d. adaptive traits make their bearers better at securing mates ____ coevolution e. original source of new alleles ____ adaptive radiation f. burst of divergences from one lineage into manyarrow_forward
- The process in which environmental pressures result in the differential survival and reproduction of individuals of a population is called _________. a. catastrophism b. evolution c. natural selection d. geneticsarrow_forwardMatch the evolution concepts. ____ gene flow a. outcome can be interdependence ____ sexual selection b. changes in a populations allele frequencies due to chance alone ____ extinct c. alleles enter or leave a population ____ genetic drift d. adaptive traits make their bearers better at securing mates. ____ coevolution e. no more living members ____ adaptive radiation f. burst or divergences from one lineage into manyarrow_forwardWhich of the following evolutionary forces can introduce new genetic variation into a population? natural selection and genetic drift mutation and gene flow natural selection and nonrandom mating mutation and genetic driftarrow_forward
- One of the original Amish colonies rose from a ship of colonists that came from Europe. The ship s captain, who had polydactyly, a rare dominant trait, was one of the original colonists. Today, we see a much higher frequency of polydactyly in the Amish population. This is an example of: natural selection genetic drift founder effect b and carrow_forwardIf a populations allele and genotype frequencies remain constant from generation to generation, (a) the population is undergoing evolutionary change (b) the population is said to be at genetic equilibrium (c) microevolution has taken place (d) directional selection is occurring, but only for a few generations (e) genetic drift is a significant evolutionary forcearrow_forwardWhich of the following is not true of natural selection? (a) natural selection acts to preserve favorable traits and eliminate unfavorable traits (b) the offspring of individuals that are better adapted to the environment will make up a larger proportion of the next generation (c) natural selection directs the course of evolution by preserving the traits acquired during an individuals lifetime (d) natural selection acts on a populations genetic variability, which arises through mutation (e) natural selection may result in changes in allele frequencies in a populationarrow_forward
- Which of the following is not a component of Darwins theory as he understood it? a. Some individuals in a population survive longer than others. b. Some individuals in a population reproduce more thanothers. c. Heritable variations allow some individuals to compete moresuccessfully for resources. d. Mutations in genes produce new variations in a population. e. Some new variations are passed to the next generation.arrow_forward___ is the original source of new alleles. a. Mutation b. Natural selection c. Genetic drift d. Gene flow e. All are original sources of new allelesarrow_forwardMeasuring Genetic Diversity in Human Populations The theory of natural selection has been summarized popularly as survival of the fittest. Is this an accurate description of natural selection? Why or why not?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781337408332Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology: The Unity and Diversity of Life (MindTap...BiologyISBN:9781305073951Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa StarrPublisher:Cengage LearningHuman Heredity: Principles and Issues (MindTap Co...BiologyISBN:9781305251052Author:Michael CummingsPublisher:Cengage Learning
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxBiology: The Dynamic Science (MindTap Course List)BiologyISBN:9781305389892Author:Peter J. Russell, Paul E. Hertz, Beverly McMillanPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning

Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781337408332
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning

Biology: The Unity and Diversity of Life (MindTap...
Biology
ISBN:9781305073951
Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr
Publisher:Cengage Learning

Human Heredity: Principles and Issues (MindTap Co...
Biology
ISBN:9781305251052
Author:Michael Cummings
Publisher:Cengage Learning

Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax

Biology: The Dynamic Science (MindTap Course List)
Biology
ISBN:9781305389892
Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan
Publisher:Cengage Learning

Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning