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Variation

OCR - Biodiversity and Evolution - 10 - Variation

QuestionAnswer
What is variation? Variety is the presence of variety - of differences between individuals.
What three things cause variation? Meiosis, sexual reproduction and mutation.
What is interspecies variation? Variation between species.
What is intraspecies variation? Variation within a species.
What is continuous variation? Variation in which there is a full range of intermediate phenotypes between two extremes.
What is discontinuous variation? Variation in which there are discrete groups of phenotypes with no or very few individuals in between.
What is genetic variation caused by? The differences between the genes and the combinations of genes or alleles.
What type of variation would blood gorup in humans be an example of? (continuous or discontinuous) Discontinuous.
Which type of variation would length of leaves in plants be an example of? (continuous or discontinuous) Continuous.
What type of variation is controlled by a single gene? Discontinuous.
What type of variation is controlled by several genes? Continuous.
Created by: ellafadida
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