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Standard X
Biology
Gene Mutation
Down's syndro...
Question
Down's syndrome is a genetic disorder.
A
True
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B
False
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Solution
The correct option is
B
False
Down syndrome is a chromosomal disorder.
It arises due to the trisomy of 21st chromosome.
The affected individual has 47 chromosomes, instead of 46.
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Similar questions
Q.
Q15. Consider the following statements about Down Syndrome:
1. Down syndrome (DS or DNS), also known as trisomy 21, is a genetic disorder.
2. There is no cure for Down syndrome.
Which of the above statement/s is/are correct?
Q.
Assertion (A): In India, there is statutory ban on amniocentesis for sex determination and genetic disorders.
Reason (R): Genetic disorders such as Down syndrome, haemophilia and sickle cell anemia can be detected by this technique.
[0.7 mark]
Q.
Which genetic disorder is caused due to the presence of an additional copy of X-chromosome (A Karyotype of 47, XXY)?
Q.
Which among the following is/are autosomal recessive genetic disorder(s)?
Q.
The diagram represents the chromosomes of a person with a genetic disorder caused by non disjunction in which the chromosomes fail to separate properly. Which chromosome set display
non-disjunction? What is the syndrome?
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