A2 biology Genetic Terms

A quick summary of the the genetic terms that come up at A2 and there definitions

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Genotype
The genetic makeup of an organism consisting of all if alleles
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Phenotype
The observed characteristics of the organism produced by the genotype and the interactions with the enviroment
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Gene
A gene is a section of DNA which is a sequence of neucleotide bases that determines a single characteristic of an organism
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Alleles
One of the diffrent forms of gene, diffrent alleles lead to diffrent characteristics
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Recesive
An allele that is not expressed in the phenotype
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Dominant
The allele that expresses its self in the phenotype
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Co-dominant
Were both alleles affect the characteristic presented in the phenotype
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Homozygus recessive
A gene with 2 recessive alleles
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Homozygus Domminant
A gene with 2 dominant alleles
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Hetrozygous
A gene with a dominant allele and recessive allele
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Other cards in this set

Card 2

Front

The observed characteristics of the organism produced by the genotype and the interactions with the enviroment

Back

Phenotype

Card 3

Front

A gene is a section of DNA which is a sequence of neucleotide bases that determines a single characteristic of an organism

Back

Preview of the back of card 3

Card 4

Front

One of the diffrent forms of gene, diffrent alleles lead to diffrent characteristics

Back

Preview of the back of card 4

Card 5

Front

An allele that is not expressed in the phenotype

Back

Preview of the back of card 5
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