18 Questions
What is a common misconception about evolution?
Evolution only occurs in individual organisms
What is the smallest unit of evolution?
Populations
During a drought, which type of birds were more likely to survive?
Large-beaked birds
In the context of the population of medium ground finches on Daphne Major Island, what evolved during the drought?
The finch population evolved
What is the main focus of evolution according to the text?
Population dynamics
In the context of natural selection, what is the role of individuals and populations?
Populations adapt, while individuals remain static
What is the main focus of microevolution according to the provided text?
Change in allele frequencies in a population over generations
Which of the following mechanisms consistently causes adaptive evolution?
Natural selection
What is a prerequisite for evolution by natural selection?
Genetic variation
How can genetic variation be measured as per the information provided?
Gene variability and nucleotide variability
What rarely results in phenotypic variation?
Nucleotide variability
Which process can result in the formation of new genes and alleles?
Mutation and gene duplication
What is a point mutation?
A change in a single nucleotide in a DNA sequence
What is the main role of natural selection?
Acting on variation with a genetic component
'Variations that occur in coding regions (exons) rarely change the amino acid sequence of the encoded protein' refers to which genetic concept?
Synonymous mutations
'Some phenotypic differences are determined by a single gene and can be classified on an 'either-or' basis' refers to which type of inheritance?
Mendelian inheritance
What is the product of inherited genotype and environmental influences?
Phenotype
What does natural selection act upon?
Variation with a genetic component
This quiz covers the concept of microevolution, emphasizing that individual organisms do not evolve, but rather populations evolve as a result of natural selection. It also explores the role of populations in the process of evolution using the example of medium ground finches.
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