A population of wildflowers undergoes evolution over time. The blossoms are initially colored in a variety of hues, ranging from purple to white. Purple flowers have a higher rate of pollination since they are the primary attraction for pollinators. Over a number of generations, the population experiences an increase in the frequency of purple flowers while the frequency of white blossoms decreases. Which of the following best sums up the process of evolution taking place in this group of wildflowers? Stabilizing selection, as the population becomes more uniform with time, favoring the most common trait. Disruptive selection, as the population diversifies, with both purple and white flowers becoming more common. Genetic drift, as random fluctuations in allele frequencies cause unpredictable shifts in flower coloration. Directional selection, where a specific trait (purple color) is favored, leading to a shift in the population's characteristics
Question
A population of wildflowers undergoes evolution over time. The blossoms are initially colored in a variety of hues, ranging from purple to white. Purple flowers have a higher rate of pollination since they are the primary attraction for pollinators. Over a number of generations, the population experiences an increase in the frequency of purple flowers while the frequency of white blossoms decreases. Which of the following best sums up the process of evolution taking place in this group of wildflowers? Stabilizing selection, as the population becomes more uniform with time, favoring the most common trait. Disruptive selection, as the population diversifies, with both purple and white flowers becoming more common. Genetic drift, as random fluctuations in allele frequencies cause unpredictable shifts in flower coloration. Directional selection, where a specific trait (purple color) is favored, leading to a shift in the population's characteristics
Solution
The process of evolution taking place in this group of wildflowers is best summed up as Directional selection. This is because a specific trait, which is the purple color, is favored, leading to a shift in the population's characteristics. Over time, the frequency of purple flowers increases because they have a higher rate of pollination, which gives them a survival advantage. This results in the decrease of the frequency of white blossoms. This is a clear example of how natural selection can lead to a change in the traits of a population over time.
Similar Questions
Match the mechanism of natural selection with its corresponding description.the process by which individuals with advantageous traits have higher chances of survival and reproductionthe mechanism that allows genetic information to be passed down from parents to offspringthe period over which changes accumulate, leading to the emergence of new traits and the extinction of othersthe diverse range of traits exhibited among individuals within a populationthe outcome of natural selection, where populations become better adapted to their specific environmentsa.adaptationb.selectionc.timed.variatione.inheritance
Read each of the scenarios below. Then, select the option that best represents a scenario illustrating natural selection.A In a population of birds, those with larger beak sizes are better able to crack open tough seeds, providing them with a food source during periods of scarcity. Consequently, the average beak size in the population decreases.B In a population of flowers, those with a particular color variation attract more pollinators and produce more offspring. As a result, the proportion of flowers with that color variation decreases over generations.C In a population of rabbits, those with longer legs are more successful at outrunning predators and are more likely to survive and reproduce. Over time, the average leg length in the population increases.D In a population of fish, those with brighter colors are more easily spotted by predators, leading to higher mortality rates. As a result, the proportion of fish with bright colors increases over time.
What mechanism of evolution occurs when a new version of a trait arrises in a population?Group of answer choicesgenetic driftnonrandom matingmutationgene flow
Which of the following phenomena is responsible for introducing new genetic variation in a population?Multiple choice question.natural selectionnon-random matingmutationrandom matinggenetic drift
Gradual genetic changes in organisms from an ancestral species describesMultiple choice question.coevolution in similar habitats.descent with modification.artificial selection based on specific traits.
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