12 Questions
What is the focus of the study of evolutionary processes?
Changes that occur within populations
What is the source of genetic variation in a population?
Mutations
What is the term for the change in percentages of alleles within a population?
Microevolution
Which of the following processes is most significant in the formation of new species?
Natural selection
What is the result of genetic variation in a population?
An increase in the population's genetic diversity
What is the term for the movement of alleles from one population to another as a result of migration?
Gene flow
What is the effect of gene flow on the allele frequencies in a population?
It may change the allele frequencies and increase genetic diversity
Why does non-random mating lead to less variation in a population?
Because it leads to a higher proportion of homozygous individuals
What is the effect of inbreeding on the expression of alleles in a population?
It increases the expression of harmful recessive alleles
What is the advantage of self-fertilization in pea plants?
It occurs if the plant is not able to reproduce sexually
What is the result of male caribou sparring with each other?
They increase their chances of mating
What does gene flow involve?
The movement of genes between populations
Test your understanding of the mechanisms of evolution, including the gene pool, genetic variation, and the five processes that cause allele frequency changes within populations. Learn how microevolution occurs and its effects on population dynamics. Assess your knowledge of the fundamental principles of evolution.
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