12 Questions
Why is genetic diversity important for evolution by natural selection to occur?
Genetic diversity is necessary for evolution by natural selection to occur because it allows for a greater chance of individuals having characteristics suited to environmental changes.
What is meant by 'selective advantage'?
Selective advantage refers to the characteristics that make an organism more likely to survive, reproduce, and pass on favorable alleles to the next generation.
How does natural selection drive evolution?
Natural selection drives evolution by selecting for organisms with variations that provide a better chance of survival and reproduction in a given environment.
What factors can lead to low genetic diversity in a population?
Low genetic diversity can be caused by very small populations or populations with a history of inbreeding.
Explain the concept of 'speciation' in the context of evolution.
Speciation occurs when a population has no interbreeding with other populations, leading to the formation of a new species.
What is the role of mutation in the process of evolution?
Mutation introduces new genetic variations, some of which may provide individuals with favorable alleles that increase their chances of survival and reproduction.
Define allele frequency.
The number of times an allele occurs within the gene pool.
Explain antibiotic resistance.
Loss of susceptibility of bacteria to the killing or growth-inhibiting properties of an antibiotic agent.
How do populations evolve according to the text?
Populations evolve as gene frequencies change.
What is genetic diversity?
The number of different alleles of genes in a population.
Describe natural selection.
Darwin's theory to explain the mechanism of evolution.
What causes variation in populations?
Variation is caused by different combinations of alleles producing different phenotypes.
Test your knowledge on concepts related to evolution, allele frequency, antibiotic resistance, genetic diversity, and gene pool variations. Learn how populations evolve as gene frequencies change and the role of mutation in altering gene pools.
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