Inherited change

  • Created by: aarafa11
  • Created on: 14-11-18 20:25
Define genotype
The genetic combination that each organism has
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Gene
A section of DNA on a chromosome that usually codes for a particular polypeptide
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Mutation
A change in the sequence of DNA bases which changes the genetic code
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Allele
A different variation of a gene
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Multiple Alleles
A gene that has two or more possible versions
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Co-dominance
When a gene has two dominant alleles which are both expressed.
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Dominant Allele
An allele that is always expressed in the phenotype of an organism. It only need one of the allele for it to b expressed
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Recessive Allele
An allele only expressed when in a homozygous pair.
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Monohybrid
investigations that examine the inheritance of a single characteristic:
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Dihybrid
investigations that examine the inheritance of two characteristics
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Linkage
when two or more genes are located on the same chromosome
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Autosomal linkage
Linked genes which are on non-sex chromosomes
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Sex linkage
linked genes are on sex chromosomes - therefore specific characteristic is more likely to be inherited in either male or female offspring
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Epistasis
interaction of non-linked genes where one masks the expression of the other.
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Chi-squared test
statistical test to find out whether the difference between observed vs expected data is due to chance or ‘goodness of fit’ of a hypothetical model.
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Other cards in this set

Card 2

Front

Gene

Back

A section of DNA on a chromosome that usually codes for a particular polypeptide

Card 3

Front

Mutation

Back

Preview of the front of card 3

Card 4

Front

Allele

Back

Preview of the front of card 4

Card 5

Front

Multiple Alleles

Back

Preview of the front of card 5
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