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