Mechanisms of Evolutionary Change
Biology ⇒ Evolution and Diversity
Mechanisms of Evolutionary Change starts at 10 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Mechanisms of Evolutionary Change.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 12
Describe how a population bottleneck can affect genetic diversity.
Describe how genetic drift can lead to the fixation or loss of alleles in a population.
Describe the difference between gene flow and genetic drift.
Describe the effect of gene flow on the genetic structure of populations.
Describe the role of environmental changes in driving natural selection.
Explain how disruptive selection can lead to speciation.
Explain how mutation contributes to evolution.
Explain how non-random mating can affect allele frequencies in a population.
Explain the difference between microevolution and macroevolution.
Explain the role of sexual selection in evolution.
Explain why small populations are more susceptible to genetic drift.
In a population, if the frequency of allele A is 0.4, what is the frequency of allele a?
In a population, the frequency of allele A is 0.7 and allele a is 0.3. Assuming Hardy-Weinberg equilibrium, what is the expected frequency of heterozygotes (Aa)?
In the context of evolution, what is meant by 'fitness'?
The Hardy-Weinberg equation is p² + 2pq + q² = 1. What does '2pq' represent?
