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Title: If a disease is controlled by a dominant allele, can the recessive allele be bred out? Post by: daveydickler on Aug 18, 2012 In a population, after many generations, would everyone in the population eventually get the disease if it were controlled by a dominant allele? Basically, could the recessive allele be bred out of the population?
I think that the answer is no, and my reason of "because we all don't have brown eyes" is not good enough. Can anyone help me with this? Title: If a disease is controlled by a dominant allele, can the recessive allele be bred out? Post by: mihailov on Aug 18, 2012 If the dominant allele is linked to a disease, the disease will reduce the chances of the carrier surviving to produce offspring carrying the dominant allele, so over many years, it will be bred out of the population. If the disease manifests late in life etc, it will not reduce fitness, so may be kept within the population. Only beneficial alleles will breed out alternative recessive alleles in the population as non-carriers will have a lower chance of producing carrier offspring relative to the carriers of the beneficial allele.
Title: If a disease is controlled by a dominant allele, can the recessive allele be bred out? Post by: Mig.Dela7 on Aug 18, 2012 Agree with the above answerer
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