Q.

Study the following pedigree chart.

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Identify the trait from the following.

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a

Duchenne muscular dystrophy

b

Myotonic dystrophy

c

Sickle cell anaemia

d

Follicular hyperkeratosis

answer is B.

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Detailed Solution

Autosomal is a pattern of inheritance characteristic of some genetic disorders. Autosomal means that the gene is located on non sex chromosomes. Dominant means that a single copy of the mutated gene is enough to cause the disorder.

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