Which of the following best describes a difference between artificial and natural selection?
The following statement best describes the difference between artificial and natural selection: Natural selection acts without the input of humans: artificial selection requires human input. only via natural selection, genetic drift, migration, or mutation.
Which best describes the role of mutations in natural selection?
Which statement below best describes the role of mutations in evolution by natural selection? Mutations increase the genetic variation within a population, and some of the variants may provide an advantage to individuals over time. Darwin’s observations of Galápagos finches support the theory of evolution.
Which best describes Darwin’s concept of natural selection?
Darwin’s Theory of Evolution by Natural Selection More individuals are produced each generation that can survive. Phenotypic variation exists among individuals and the variation is heritable. Those individuals with heritable traits better suited to the environment will survive.
What best describes the role of mutations in evolution?
A mutation is a change in DNA, the hereditary material of life. An organism’s DNA affects how it looks, how it behaves, and its physiology. So a change in an organism’s DNA can cause changes in all aspects of its life. Mutations are essential to evolution; they are the raw material of genetic variation.
Which of the following best describes how mutations in DNA can lead to evolution?
Mutations lead to new genes, which may have an advantage over the old forms, causing the species to evolve. Explanation: Evolution is a very slow and random process which slowly changes the way the species look that is a process which changes the species over a period time.
Can evolution occur in the absence of genetic variation explain?
Genetic variation is the raw material of evolution. Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction.
What is most likely to result when a mutation affects a DNA sequence?
Answer: The amino acid sequence will be changed and a different protein will be formed.
How does natural selection affects Hardy Weinberg?
Natural selection, genetic drift, and gene flow are the mechanisms that cause changes in allele frequencies over time. When one or more of these forces are acting in a population, the population violates the Hardy-Weinberg assumptions, and evolution occurs.
What are some limits on natural selection?
Evolutionary theory predicts that factors such as a small population size or low recombination rate can limit the action of natural selection. The emerging field of comparative population genomics offers an opportunity to evaluate these hypotheses.