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  4. The parents do not suffer from a disease but this disease is seen in some of their children. This disease must be caused due to

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Q. The parents do not suffer from a disease but this disease is seen in some of their children. This disease must be caused due to

NTA AbhyasNTA Abhyas 2020Principles of Inheritance and Variation

Solution:

In autosomal recessive disorder, if the parents are heterozygous (Aa), they will not suffer from the disease. However, they will produce offsprings of the genotype AA, Aa and aa. The children with genotype aa will suffer from the disease.