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Which one of the following symbols and i...

Which one of the following symbols and its representation, used in human pedigree analysis is correct

A

B

C

D

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The correct Answer is:
B
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ERRORLESS -PRINCIPLES OF INHERITANCE AND VARIATION-Principles Of Inheritance And Variation
  1. A man who is suffering from a recessive X linked disease marries a nor...

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  2. Person whose father is colourblind marries a lady whose mother is daug...

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  3. Which one of the following symbols and its representation, used in hum...

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  4. Pick out the correct statements (A) Haemophilia is a sex-linked rece...

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  5. The most common type of haemophilia results from the congenital absenc...

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  6. Which of the following diseases belongs to the same category as colour...

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  7. X-linked recessive gene is

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  8. If a colourblind woman marries and a normal visioned man, their sons w...

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  9. A man known to be victim of haemophilia marries a normal woman whose f...

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  10. In the following human pedigree, the filled symbols represent the affe...

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  11. Given below is a pedigree chart showing the inheritance of a certain s...

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  12. Which of the following statement about colour blindness is correct

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  13. Sex linked disease is

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  14. A woman with normal vision, but whose father was colour blind, marries...

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  15. A man and a woman, who do not show any apparent signs of a certain inh...

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  16. Which of the following is not a hereditary disease

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  17. If a boy's father has haemophilia and his mother has one gene for haem...

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  18. A colour blind man marries a woman with normal sight who has no histor...

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  19. Sickle cell anaemia is due to

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  20. Sex linked inheritance was discovered by

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