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Which of the following occurs due to the presence of autosome linked dominant trait ?
- a)Myotonic dystrophy
- b)Haemophilia
- c)Thalessemia
- d)Sickle cell anaemia
Correct answer is option 'A'. Can you explain this answer?
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Which of the following occurs due to the presence of autosome linked d...
Myotonic dystrophy is a genetic disorder caused by the expansion of a trinucleotide repeat sequence on an autosomal chromosome. It is inherited in an autosomal dominant pattern, meaning that a single copy of the mutated gene is sufficient to cause the condition.
The other options listed, such as haemophilia, thalassemia, and sickle cell anaemia, are not caused by autosomal-linked dominant traits. Haemophilia is an X-linked recessive disorder, thalassemia is caused by mutations in the genes involved in hemoglobin production, and sickle cell anaemia is also caused by a mutation in the beta-globin gene.
Therefore, the correct answer is (a) Myotonic dystrophy.
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Which of the following occurs due to the presence of autosome linked d...
Myotonic Dystrophy due to the presence of autosomal dominant trait
Myotonic dystrophy is a genetic disorder characterized by progressive muscle wasting and weakness. It is caused by the presence of an autosomal dominant trait, which means that only one copy of the mutated gene is needed to inherit the disorder.
Explanation:
- Individuals with myotonic dystrophy inherit a mutated gene on one of their autosomal chromosomes (non-sex chromosomes).
- The presence of the autosomal dominant trait leads to the expression of the disease, even if the individual has only one copy of the mutated gene.
- Myotonic dystrophy can be passed down from generation to generation in a family affected by the autosomal dominant trait.
- Symptoms of myotonic dystrophy typically appear in adulthood and worsen over time, affecting various muscle groups in the body.
In conclusion, the occurrence of myotonic dystrophy is directly linked to the presence of an autosomal dominant trait. It is important for individuals with a family history of myotonic dystrophy to undergo genetic counseling and testing to understand their risk of inheriting the disorder.
Myotonic dystrophy is a genetic disorder characterized by progressive muscle wasting and weakness. It is caused by the presence of an autosomal dominant trait, which means that only one copy of the mutated gene is needed to inherit the disorder.
Explanation:
- Individuals with myotonic dystrophy inherit a mutated gene on one of their autosomal chromosomes (non-sex chromosomes).
- The presence of the autosomal dominant trait leads to the expression of the disease, even if the individual has only one copy of the mutated gene.
- Myotonic dystrophy can be passed down from generation to generation in a family affected by the autosomal dominant trait.
- Symptoms of myotonic dystrophy typically appear in adulthood and worsen over time, affecting various muscle groups in the body.
In conclusion, the occurrence of myotonic dystrophy is directly linked to the presence of an autosomal dominant trait. It is important for individuals with a family history of myotonic dystrophy to undergo genetic counseling and testing to understand their risk of inheriting the disorder.
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Which of the following occurs due to the presence of autosome linked dominant trait ?a)Myotonic dystrophyb)Haemophiliac)Thalessemiad)Sickle cell anaemiaCorrect answer is option 'A'. Can you explain this answer?
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