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The polygenic disorder is controlled by only one gene.

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Important Questions on Heredity and Variation

MEDIUM
Science>Biology>Heredity and Variation>Genetic Disorders
The active component, nicotine is found in
EASY
Science>Biology>Heredity and Variation>Genetic Disorders
Which of the following disease is caused due to a change in the number of autosomes?
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Science>Biology>Heredity and Variation>Genetic Disorders
Sickle cell anemia is caused due to _____ (mutation/adaptation) in gene.
HARD
Science>Biology>Heredity and Variation>Genetic Disorders
Klinefelter's syndrome is characterized by a karyotype of
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Science>Biology>Heredity and Variation>Genetic Disorders
Webbed neck is characteristic of
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Science>Biology>Heredity and Variation>Genetic Disorders
Klinefelter syndrome is related with all, except
MEDIUM
Science>Biology>Heredity and Variation>Genetic Disorders
Consumption of tobacco leads to
MEDIUM
Science>Biology>Heredity and Variation>Genetic Disorders
Nicotiana tabacum belongs to family _____.
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Science>Biology>Heredity and Variation>Genetic Disorders
The number of chromosomes in Turner's syndrome is
EASY
Science>Biology>Heredity and Variation>Genetic Disorders
Mitochondrial disorder is caused due to _____ (mutation/translocation) in gene.
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Science>Biology>Heredity and Variation>Genetic Disorders
Which one of the following is sex chromosomal disorder?
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Science>Biology>Heredity and Variation>Genetic Disorders
XXY chromosome complement is found in
EASY
Science>Biology>Heredity and Variation>Genetic Disorders
Sickle cell anaemia is diagnosed through _____ test.
HARD
Science>Biology>Heredity and Variation>Genetic Disorders
Females with Turner's syndrome have
EASY
Science>Biology>Heredity and Variation>Genetic Disorders
A variation in a single gene and are typically recognised by their striking familial inheritance patterns causes _____ disorders.
MEDIUM
Science>Biology>Heredity and Variation>Genetic Disorders
A human female with Turner’s syndrome 
EASY
Science>Biology>Heredity and Variation>Genetic Disorders
Trisomy of chromosome 21 causes _____.
MEDIUM
Science>Biology>Heredity and Variation>Genetic Disorders

Fill in the blank with the correct word given in the bracket.

_____ (Klinefelter/Down) syndrome is a chromosomal variation in males in which one extra X chromosome is present.

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Science>Biology>Heredity and Variation>Genetic Disorders
The polygenic disorder is controlled by _____ (gene/mitochondria).
EASY
Science>Biology>Heredity and Variation>Genetic Disorders
The person with Turner's syndrome has