what is lethal gene. example????
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If the mutation is caused by a dominant lethal allele, the homozygote and heterozygote for the allele will show the lethal phenotype. ... Mostlethal genes are recessive. Examplesof diseases caused by recessive lethalalleles are cystic fibrosis, Tay-Sachs disease, sickle-cell anemia, and brachydactyly.
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If the mutation is caused by a dominant lethal allele, the homozygote and heterozygote for the allele will show the lethal phenotype. ... Mostlethal genes are recessive. Examplesof diseases caused by recessive lethalalleles are cystic fibrosis, Tay-Sachs disease, sickle-cell anemia, and brachydactyly.
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