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Fatty acid metabolism disorder is an autosomal recessive disorder. Two unaffected parents have 6 children -...

Fatty acid metabolism disorder is an autosomal recessive disorder. Two unaffected parents have 6 children - all of whom are unaffected.

List all of the mother's possible phenotypes.

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Answer #1

An autosomal recessive disease is inherited in an individual only under one condition. This condition is the presence of two copies lf the allele in the indiv. The individuals with a single copy are physiologically normal in nature since the disease does not pursue. However, they can transmit thus single allele to their offsprings.

According to the information, the unaffected parents have 6 unaffected children. Thus means that either all the children are not bearing the allele at all or they are all only carriers. The second condition can be possible only under the condition that either of the parents is a carrier.

Thus, the possible genotypes of the mother can be either As or aa.

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