Why does the response to selection often level off after many generations of selection?

Q: What is the Evidence That Populations Evolve by Natural Selection?

A: Evolution is the process of heritable change in the characteristics of an organism. Such changes…

Q: How does sexual selection operate?

A: Sexual selection is an "exceptional or special case" of natural selection. The sexual selection…

Q: Explain how natural selection can lead to adaptation.

A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…

Q: How do directional, disruptive, and stabilizing selection differ? Provide an example for each type…

A: Within the realm of evolution, natural selection stands as a pivotal process wherein traits…

Q: This species of Squirrel involves multiple males fighting, the strongest performs a specific dance…

A: According to Darwin there is natural selection, artificial selection, sexual selection in order to…

Q: What are the effects of artificial selection during animal domestication?

A: Man and animals have always been living in harmony and man has been using animals for various…

Q: O Stabilizing selection O Directional selection O Disruptional selection

A: Natural selection is a theory proposed by Darwin which describes that individual organisms with…

Q: For a chamelons ability to color change, what type of selection (directional selection, stabilizing…

A: Natural selection can bring the adaptive evolution . It will increases the frequency of allele that…

Q: adaptation (as a unifying theme) is exhibited across different organism

A: Adaptation is a body part or covering or any behavior exhibited by an animal in order to survive…

Q: Define artificial selection

A: In nature, the process of natural selection leads to evolution. The individuals with the fittest…

Q: How do allele frequencies change if the two homozygotes have equal fitness, but heterozgotes have a…

A: Natural selection can cause microevolution (change in allele frequencies), with fitness expanding…

Q: How can natural selection maintain harmful alleles in a population?

A: The process in which a population of living organisms adapts to their environment by certain changes…

Q: What is a mode of natural selection that favors a phenotype at one end of a range of variation?…

A: Natural selection is the adaptation and alteration of populations of living organisms. Individuals…

Q: Applying Hamilton’s Rule, will natural selection favor helping a half sibling if the  incremental…

A: According to Hamilton's rule, kin selection causes genes to increase in the frequency when the…

Q: What is artificial selection? * 1 point When the environment selects the best traits to survive and…

A: Natural selection is based on the environment conditions and more on adaptive characteristics of…

Q: Are there examples of artiicial selection in animals?

A: The two main components of nature and abiotic and biotic components. The environment constitutes the…

Q: Can Multifactorial, or complex traits be considered as environmental influences ?

A: Multifactorial inheritance can be defined as the genetic disorders that occur as a result of…

Q: What are interesting facts that applies to adaptation as a unifying theme

A: Indroduction: Although biology, literally, the "study of life", what is meant by "life" varies…

Q: From the diagram: 1. Is A responding variable? 2. Is B manipulated variable? 3. Is C controlled…

A: In experiments, scientists controls the variables present in the experiment as without controlling…

Q: Why, of all the evolutionary mechanisms, is selection the only one that can result in adaptation?

A: Evolution is the process of change in the characteristic traits of an organism, which are heritable,…

Q: Define about Detecting Natural Selection in Populations ?

A: Natural selection is the process through which beneficial heritable traits become more prevalent…

Q: How does natural selection influence adaption?

A: The natural process by which species adjust to changes in their environment. Life forms with…

Q: Explain how sexual selection might lead to a)sexual dimorphism and b) members of one sex (usually…

A: (a) Sexual selection leads to sexual dimorphism as males of a species make extreme efforts to…

Q: Discuss the case of sickle-cell disease as an example of stabilizing selection.

A: Sickle cell disease or sickle cell anaemia is a heritable disease that affects the haemoglobin…

Q: Imagine that genetic technology advances to the point where the genetic profile of an individual can…

A: Each and every live organism on earth contains gene, it may be DNA or RNA, or both. This gene…

Q: Selection operates on a trait with a normal distribution. If after selection, the mean in the trait…

A: Natural selection is a phenomenon by which population undergoes evolution. It favors certain alleles…

Q: How and why have humans changed animals over time through artificial selection?

A: Q. How and why have humans changed animals over time through artificial selection?   Answer -…

Q: in a world full of humans, is it better to be r-selected or k-selected?

A: r-selection: Many of the species are highly r-selected.r refers for reproduction. r- selection…

Q: Is the evolution of behavioral traits versus other traits, like morphological trait, likely to be…

A: The behavioral traits is defined as the traits that can be seen due to behaviour of a person, like…

Q: Color of butterflies Number of butterflies

A: Selection is of two types artificial or natural. Natural selection favoured the individual's…

Q: Describe the similarities and differences among directional, balancing, disruptive, and stabilizing…

A: The process of natural selection can operate in a population either in the form of directional,…

Q: Explain frequency-dependent selection in your own words.

A: The process by which the heritable traits of biological population is changed over a successive…

Q: Why might natural selection act more strongly on traits that improve reproductive success early in…

A: To find Why natural selection act more strongly on traits that improve reproductive success early in…

Q: What effect does stabilizing selection have on a population?   The average population moves toward…

A: Stabilizing selection is a type of natural selection that favors the intermediate or average…

Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.