7. Genetics, Populations, Evolution & Ecosystems: Definitions (A Level only) (AQA A-Level Biology): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
What is the key feature of allopatric speciation?
What is the key feature of allopatric speciation?
Geographic separation of populations
In codominance, how do alleles behave in a heterozygous individual?
In codominance, how do alleles behave in a heterozygous individual?
Both alleles contribute equally
Which phenotypes does directional selection favour?
Which phenotypes does directional selection favour?
One extreme of the range
How many conditions must be met for Hardy-Weinberg equilibrium?
How many conditions must be met for Hardy-Weinberg equilibrium?
Five specific conditions
What genotype describes an individual with two different alleles for a gene?
What genotype describes an individual with two different alleles for a gene?
Heterozygous
What type of competition occurs between different species?
What type of competition occurs between different species?
Interspecific competition
In which populations does genetic drift have the strongest effect?
In which populations does genetic drift have the strongest effect?
Small populations
What environments can pioneer species colonise?
What environments can pioneer species colonise?
Harsh, unstable environments
What does carrying capacity represent?
What does carrying capacity represent?
Maximum sustainable population size
What occurs in epistasis?
What occurs in epistasis?
One gene modifies another's expression