Heterozygous: Difference between revisions

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Heterozygosity refers to an individual's [[Genotype|Genotype]]. It occurs when an organism&nbsp;inherits a [[Dominant|dominant]] and [[Recessive|recessive]] [[Allele|allele]] for a particular [[Gene|gene]] from the parents. The [[Phenotype|phenotype]] of this heterozygous individual is determined by the dominant allele in the [[Genotype|genotype]] while the recessive allele will show nothing in the phenotype&nbsp;<ref>Griffths A. J. F., Wessler S. R., Lewontin R. C., Carroll S. B. (2008) Introduction to Genetic Analysis. 9th Edition. New York: W. H. Freeman and Company</ref>. A heterozygous gene is typically denoted by the abbreviation Aa.The opposite to heterozygous is [[Homozygous]].  
Heterozygosity refers to an individual's [[Genotype|Genotype]]. It occurs when an organism&nbsp;inherits a [[Dominant|dominant]] and [[Recessive|recessive]] [[Allele|allele]] for a particular [[Gene|gene]] from the parents. The [[Phenotype|phenotype]] of this heterozygous individual is determined by the dominant allele in the [[Genotype|genotype]] while the recessive allele will show nothing in the phenotype&nbsp;<ref>Griffths A. J. F., Wessler S. R., Lewontin R. C., Carroll S. B. (2008) Introduction to Genetic Analysis. 9th Edition. New York: W. H. Freeman and Company</ref>. A heterozygous gene is typically denoted by the abbreviation Aa but this can be different depending on your source <ref>Hartl, D. L &amp;amp;amp; Jones, E.W. (2005) Genetics: analysis of genes and genomes 6th edition. Sudbury, MA: Jones and Bartlett.</ref>. The opposite to heterozygous is [[Homozygous]].  


=== References  ===
=== References  ===


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Revision as of 19:11, 27 November 2014

Heterozygosity refers to an individual's Genotype. It occurs when an organism inherits a dominant and recessive allele for a particular gene from the parents. The phenotype of this heterozygous individual is determined by the dominant allele in the genotype while the recessive allele will show nothing in the phenotype [1]. A heterozygous gene is typically denoted by the abbreviation Aa but this can be different depending on your source [2]. The opposite to heterozygous is Homozygous.

References

  1. Griffths A. J. F., Wessler S. R., Lewontin R. C., Carroll S. B. (2008) Introduction to Genetic Analysis. 9th Edition. New York: W. H. Freeman and Company
  2. Hartl, D. L &amp;amp; Jones, E.W. (2005) Genetics: analysis of genes and genomes 6th edition. Sudbury, MA: Jones and Bartlett.