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20 Cards in this Set
- Front
- Back
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Definition of population |
A group of organisms of the same species occupying a particular space at a particular time that can potentially interbreed. |
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Carrying capacity |
An ecosystem supports a certain size of population of a species. The carry capacity is controlled by abiotic and biotic factors such as competition and predation |
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Def of community |
All the populations in an area |
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Biotic factor |
Any living or biological factor |
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Abiotic factor |
Any non-living or physical factor e.g. light intensity |
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Def of ecosystem |
The community, together with all the non-living components of its environment. |
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Niche |
The place where an organism is found and the organism’s interactions with its biotic and abiotic environment. |
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Def of biodiversity |
The variety of living organisms |
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Habitat |
The place where an organism lives |
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Genome? |
The complete set of genes in a cell including those in mitochondria and/or chloroplast |
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Proteome |
The full range of proteins produced by the genome |
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Genome? |
The complete set of genes in a cell including those in mitochondria and/or chloroplast |
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Proteome |
The full range of proteins produced by the genome |
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What is a vector |
Something that is used to transfer DNA into a cell |
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Gene pool |
The complete range of alleles present in a population |
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Stabilising selection |
Individuals with alleles for characteristics towards the middle of the range are more likely to survive and reproduce |
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Directional selection |
Individual with alleles for characteristics towards an extreme are more likely to survive and reproduce |
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Disruptive selection |
Individuals with alleles for characteristics towards either extreme are more likely to survive and reproduce |
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Epigenetics |
Heritable changes in gene function Without changes to the base sequence of dna |
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Epistasis |
The allele of one gene masks the expression of alleles of other genes |
