Select the correct statement regarding evolution through genetic drift. Group of answer choices The evolution of a population occurs through a chance event that has nothing to do with the fitness of individuals. The evolution of a population occurs through competition for resources and survival of the fittest. The evolution of a population occurs only if sexual dimorphism (males and females look different from one another) exists between males and females. The evolution of a population occurs only if the population is very large.

Select the correct statement regarding evolution through genetic drift. Group of answer choices The evolution of a population occurs through a chance event that has nothing to do with the fitness of individuals. The evolution of a population occurs through competition for resources and survival of the fittest. The evolution of a population occurs only if sexual dimorphism (males and females look different from one another) exists between males and females. The evolution of a population occurs only if the population is very large.

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...

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Indicate which of the statements below is True or False. Enter 1 for True and 2 for False. Question 2 options: Evolution can be described as changes in the proportion of variable traits (including different alleles) within a population over generations. Morphological variation between individuals is almost always correlated with genetic variation, ie. those individuals that differ in phenotype also differ in genotype. Variation in morphological traits may be due to genetic or environmental factors, but both causes of variation can be inherited and be subject to evolutionary change. Phenotypic plasticity is the term used to describe plastic, or variable, responses by individuals with the same genotype under differing environmental conditions.
The frequency of both alleles in a population is 0.5. If there are 100 individuals homozygous for one allele, 100 individuals homozygous for the other allele, and 25 heterozygous individuals in the population, Hardy-Weinberg equilibrium shows that no evolution is occurring.
For each statement, select the genetic evolutionary concept that best represents the description. mating among close relatives the movement of alleles between populations refers to an allele for which all members of a population are homozygous When a small group of individuals found a new population, allele frequencies in the descendants differ from those in the original population.
What causes variation among a population of living things and How can variation in one generation influence the next generation? Is the variation in a population will be examined as the “raw material” upon which natural selection acts. Why are there so many different kinds of living things? Comparing species that exist today reveals a lot about their relationships to one another and provides evidence of common origins. This session explores the theory of evolution: change in species over time.
Which 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 population
#21 Answer the following questions about evolution. Number responses according to the questions (1-4). (short answers are fine) How can negative traits that don't show up until old age continue in populations? (Why aren't they eliminated through natural selection?) As part of answer, provide an example. Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If natural selection occurs in this population, what would someone expect to see if you returned in 100 mouse generations? Describe what someone see in terms of fur colors in the population. Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If mutations occur in this population, what could someone see if they returned in 100 mouse generations, that would tell them mutations had occurred? Describe what they would see in terms of fur colors in the population, and how it would be different from what they would see in #2. If…
What is variation in evolution-if heterozygosity is reduced,what happens to the potential for evolution?the phenotype(genotype)of the population is due to the mosaic of random and directed processes.some of these have to do with history.some related to adaptation etc.as completely as possible discuss the role of the chance and direction in variation in evolution and in determinijg the phenotype of a population
The Hardy–Weinberg principle states that allele and genotype frequencies remain constant from one generation to the next, as long as specific conditions are met.Choose Yes or No for the conditions that must be met from the provided statements below. Mutations are exponentially occurring. All members of the population breed. Everyone produces the same number of offspring. The population is infinitely large. There is no migration in or out of the population. No net mutations are occurring. Natural selection of beneficial traits is occurring. Natural selection is not occurring. All mating is completely random. Offspring are able to migrate out of the population.
#21 Answer the following questions about evolution. Number responses according to the questions (1-4). How can negative traits that don't show up until old age continue in populations? (Why aren't they eliminated through natural selection?) As part of answer, provide an example. Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If natural selection occurs in this population, what would someone expect to see if you returned in 100 mouse generations? Describe what someone see in terms of fur colors in the population. Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If mutations occur in this population, what could someone see if they returned in 100 mouse generations, that would tell them mutations had occurred? Describe what they would see in terms of fur colors in the population, and how it would be different from what they would see in #2. If dark skin helps protect…
In the modern reckoning of evolution by natural selection, what is the most important feature that allows an allele to be more represented over time in a population? The allele makes the organisim stronger. The allele allows the organisim to produce more breeding offspring. The allele allows the organisim to eat more readily. The allele allows the organsims to escape predators readily.
In a population of lizards, half of the individuals are yellow and half are blue. Color is genetically determined. Which of the following scenarios could result in evolution by genetic drift? A disease indiscriminately reduces the population by 90%. Females preferentially mate with blue individuals. Yellow individuals from a nearby population join the population. Birds are better able to see and therefor prey on blue lizards.
Imagine a remote island inhabited by a population of lizards. To determine if this population is in Hardy-Weinberg equilibrium for gene X, which of the following conditions must be met? The lizard population should be at least 100 individuals and close to other large populations to avoid genetic drift. No selection, meaning that all individuals have an equal chance of survival and reproduction No gene flow due to migration between the island and other lizard populations Random mating among lizards without any preference to gene X No measurably significant mutations occurring in the lizard population at gene X