Variation 7.1, 7.2
Causes of/investigating variation
- Created by: Jessica Betts
- Created on: 19-03-13 10:59
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- Variation
- Intraspecific variation
- Variation within the same species
- Interspecific variation
- Variation between members of different species
- Causes of Variation
- Genetic
- Mutations
- variety in asexual organisms can only be increased by mutation
- sudden change in a gene
- Fusion of gametes
- Variety of offspring two parents can produce
- Meiosis
- Mixes up genetic material, special form of nuclear divison
- Genetic factors can be grouped, generally controlled by a single gene, represented on a bar chart
- Mutations
- Enviornmental
- Climatic conditions
- Food availability
- Soil conditions
- e.g. height and mass. Form a continuum. Represented on a graph, forms a normal distribution curve
- can work out mean and standard deviation
- Untitled
- can work out mean and standard deviation
- Genetic
- Intraspecific variation
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