6116866
Descripción
Mapa Mental por Louise Tamin, actualizado hace más de 1 año
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Creado por Louise Tamin
hace más de 8 años
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Variation
- Interspecific variation- variation between different species
- Intraspecific variation- variation between the same species
- Discontinous variation
- few distinct
categories
- qualitative with no overlap between
categories
- are controlled by one gene
- unaffected by the environment
- few distinct
categories
- Continuous variation
- no distinct categories
- controlled by a large number of
genes
- quatitiative
- significantly affected by a large number of
genes
- no distinct categories
- Twin studies
- Identical twins have identical genes then differences between them are probably due to
environment
- Identical twins have identical genes then differences between them are probably due to
environment
- Discontinous variation
- Normal distribution curve
- Mean- measurement at the maximum height of the curve
- Standard deviation- the measure of the width of the
curve
- Mean- measurement at the maximum height of the curve
- Random Sampling
- To avoid bias. We can use random numbers generated from a computer to choose coordinates to place
quadrats or traps to pick individuals
- large sample size- reduces chance
- statistical tests to determine the
extent chance has influenced the
data
- statistical tests to determine the
extent chance has influenced the
data
- To avoid bias. We can use random numbers generated from a computer to choose coordinates to place
quadrats or traps to pick individuals
- Causes of
variation
- mutation
- meiosis
- fusion of
gametes
- Environmental influences such as: soil conditions, pH, climatic conditions and food
availability
- mutation
Recursos multimedia adjuntos
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