Understanding Evolution: Genetic Drift, Natural Selection, and Fitness

<p>Variation in traits in a population</p> Signup and view all the answers

<p>Fitness affects the number of offspring an individual produces</p> Signup and view all the answers

<p>Fitness</p> Signup and view all the answers

<p>Transfer of genes between populations</p> Signup and view all the answers

<p>Genetic variation</p> Signup and view all the answers

<p>Natural selection affects survival and reproduction fitness while genetic drift affects allele frequency randomly</p> Signup and view all the answers

<p>Variation in traits within the population</p> Signup and view all the answers

<p>Gene flow is due to random events while genetic drift involves movement of alleles between populations</p> Signup and view all the answers

<p>The number of offspring an individual produces</p> Signup and view all the answers

<p>Variation in heritable traits within the population</p> Signup and view all the answers

<p>It allows for genetic variation and selection pressure to shape populations over time</p> Signup and view all the answers

<p>Speciation</p> Signup and view all the answers

<p>Trait color must be visible</p> Signup and view all the answers

<p>Natural selection involves interactions between traits and the environment while genetic drift is due to random events</p> Signup and view all the answers

<p>Evolution</p> Signup and view all the answers

<p>Number of offspring an individual produces</p> Signup and view all the answers

<p>Environmental pressures</p> Signup and view all the answers

<p>Transfer of genes between populations</p> Signup and view all the answers

<p>Genetic drift and natural selection can both independently impact allele frequencies in a population</p> Signup and view all the answers

<p>Fitness is directly tied to the number of offspring an individual produces</p> Signup and view all the answers

<p>Natural selection targets specific genetic traits that impact individuals' fitness in their environment</p> Signup and view all the answers

<p>Decreased genetic variation within the population</p> Signup and view all the answers

<p>Presence of genetic variation among individuals</p> Signup and view all the answers

<p>Speciation</p> Signup and view all the answers

<p>Natural selection</p> Signup and view all the answers

<p>Trait heritability</p> Signup and view all the answers

<p>Movement of genes between populations</p> Signup and view all the answers

<p>Natural selection requires heritability, while genetic drift doesn't.</p> Signup and view all the answers

<p>They can both impact allele frequency and cause evolution</p> Signup and view all the answers

<p>'Fitness'</p> Signup and view all the answers

<p>Variation in heritable traits, variable survival and reproduction, and the next generation having a different genetic composition than the parents</p> Signup and view all the answers

<p>Natural selection and genetic drift are two distinct processes that can both impact allele frequency and cause evolution.</p> Signup and view all the answers

<p>Fitness is directly related to the number of offspring an individual produces, as those that produce more offspring are considered more fit.</p> Signup and view all the answers

<p>The population must be in a state of genetic equilibrium</p> Signup and view all the answers

<p>Natural selection involves changes in allele frequency due to interactions between heritable traits and environmental pressures, while genetic drift involves changes in allele frequency due to random events.</p> Signup and view all the answers

<p>Gene flow refers to the transfer of genetic material between populations, which can introduce new genetic variation.</p> Signup and view all the answers

<p>Genetic variation is a requirement for both natural selection and genetic drift to impact allele frequencies and cause evolution.</p> Signup and view all the answers