10 Questions
What is the main source of genetic variation in natural populations?
Mutation and gene flow
Which concept is associated with the idea that species accumulate differences through time, leading to the emergence of new species?
Descent with modification
What distinguishes Darwin's proposal from those of his predecessors in terms of evolutionary mechanisms?
Introduction of natural selection as the mechanism of evolution
How does natural selection lead to evolutionary change in allele frequencies?
Through the differential survival and reproduction of individuals with certain alleles
What is the primary process through which new alleles are introduced into a population?
Mutation
Which principle predicts genotype frequencies and can be written as an equation?
Hardy–Weinberg principle
Which factor is NOT one of the assumptions for Hardy–Weinberg equilibrium?
Small population size
What type of variation within natural populations was a puzzle to Darwin and his contemporaries?
Genetic variation
What does the Hardy–Weinberg equation p2 + 2pq + q2 = 1 represent?
Genotype frequencies
What did scientists widely accept during the mid-1800s regarding inheritance?
Blending inheritance theory
Test your knowledge on genetic variation, evolution, and differences in alleles of genes within natural populations with this quiz based on Chapter 20 of Biology 13th Edition Raven by Dr. Racha Kerek.
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