Complete Dominance: Difference between revisions
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Created page with " Complete dominance is where a dominant allele completely masks the presence of the recessive allele. An example of this can be shown in the cross below: Azazel is a red ..." |
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Complete dominance is where a [[Dominant_allele|dominant allele]] completely masks the presence of the [[Recessive_alleles|recessive allele]]. An example of this can be shown in the cross below:<br> | |||
Azazel is a red skinned Homo-Superior homozygous with the u gene coding for red skin. | |||
Raven is a blue skinned Homo-Superior homozygous with the U gene coding for blue skin.<br> | |||
{| width="200" border="1" cellpadding="1" cellspacing="1" | {| width="200" border="1" cellpadding="1" cellspacing="1" | ||
|- | |- | ||
| | | | ||
| u | | u | ||
| u | | u | ||
|- | |- | ||
| U | | U | ||
| Uu | | Uu | ||
| Uu | | Uu | ||
|- | |- | ||
| U | | U | ||
| Uu | | Uu | ||
| Uu | | Uu | ||
|} | |} | ||
As shown by the cross, all the offspring should have a Uu genotype for skin color. However, as the U allele is completely dominant over the u allele, their child Kurt expresses a phenotype with completely blue skin. | As shown by the cross, all the offspring should have a Uu genotype for skin color. However, as the U allele is completely dominant over the u allele, their child Kurt expresses a phenotype with completely blue skin. | ||
Revision as of 06:08, 25 November 2014
Complete dominance is where a dominant allele completely masks the presence of the recessive allele. An example of this can be shown in the cross below:
Azazel is a red skinned Homo-Superior homozygous with the u gene coding for red skin.
Raven is a blue skinned Homo-Superior homozygous with the U gene coding for blue skin.
| u | u | |
| U | Uu | Uu |
| U | Uu | Uu |
As shown by the cross, all the offspring should have a Uu genotype for skin color. However, as the U allele is completely dominant over the u allele, their child Kurt expresses a phenotype with completely blue skin.