Which of the following statements about evolution is false?...

Which of the following statements about evolution is false?
a. Gene mutations alone amount to evolution.
b. Genetic drift and gene flow are modern theories of evolution.
c. Natural selection contributes to evolution.
d. Chimpanzees evolved from a hominoid ancestor.

Key Concepts

Common Ancestry

Common ancestry is the concept that all living organisms share a common origin. Through the branching process of evolution, different species emerge from a shared ancestor, which explains the observed similarities and differences among species.

Natural Selection

Natural selection is the mechanism by which individuals with traits that are better suited to their environment tend to survive and reproduce. This process leads to an increase in the frequency of advantageous traits in a population over generations, driving evolutionary adaptation.

Gene Flow

Gene flow is the transfer of genetic variation from one population to another. It occurs when individuals or their gametes migrate, introducing new alleles into a population and potentially altering its genetic makeup, thereby contributing to evolutionary changes.

Gene Mutation

Gene mutation refers to a permanent alteration in the DNA sequence that makes up a gene. Mutations are a primary source of genetic variation, providing the raw material on which evolutionary forces such as natural selection act, though mutations alone do not account for all evolutionary changes.

Evolution

Evolution is the process of change in the heritable characteristics of biological populations over successive generations. It explains the diversity of life and involves mechanisms that alter gene frequencies, leading to adaptations and speciation over time.

Genetic Drift

Genetic drift is the random fluctuation of allele frequencies in a population due to chance events. It has a more significant impact in small populations and can lead to the loss of genetic variations over time, playing a crucial role in the evolution of species alongside natural selection.

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