Speciation & Evolution Keywords

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  • Created by: ew12342
  • Created on: 21-04-16 13:19
Proteome
All the proteins produced from the DNA.
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Genome
All the DNA of an individual.
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Allele frequency
Frequency of a particular allele in a population.
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Gene pool
Range of alleles in a population.
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Mutation
A change in the base sequence of DNA.
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Genotype
Genetics of an individual.
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Phenotype
Physical characteristics of the expression of the genotype.
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Prezygotic
When fertilisation is prevented.
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Postzygotic
When the zygote fails or is unable to breed.
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Species
A group of closely related organisms that can interbreed to produce fertile offspring.
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Speciation
The development of a new species.
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Selection pressure
A factor limiting the survival of an organism or species.
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Reproductive isolation
A barrier that prevents interbreeding between organisms.
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Gene flow
The transfer of alleles or genes from one population to another.
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Natural selection
"Survival of the fittest".
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Variation
Differences between individuals or alleles.
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Hybrid
When two different species interbreed.
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Allopatric speciation
A geographical barrier between two populations developing into a new species.
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Sympatric speciation
A barrier that is not geographical that forms the development of a new species e.g. mechanical, behavioural or temporal.
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Other cards in this set

Card 2

Front

All the DNA of an individual.

Back

Genome

Card 3

Front

Frequency of a particular allele in a population.

Back

Preview of the back of card 3

Card 4

Front

Range of alleles in a population.

Back

Preview of the back of card 4

Card 5

Front

A change in the base sequence of DNA.

Back

Preview of the back of card 5
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