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If father is normal while mother is carr...

If father is normal while mother is carrier of haemophilia

A

All the female children will be cerrier

B

A male child has `50%` chances of active disease

C

Female ahild has probability of `50%` to active disease

D

All the female children will be colourblind

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The correct Answer is:
B
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A coloured man (X^(c)Y) marries a woman who is carrier for haemophilia (XX^(h)) . Which of the following is true for their progenies ?

Why do the sons of a carrier mother and a normal father suffer from haemophilia whereas the son of a haemophilic father and normal mother would not?

Probability of male child of haemophilic father and normal mother becoming haemophilic is

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ALLEN-GENETICS & MOLECULAR BASIS OF INHERITANCE AND MUTATION-EXERCISE-I (CONCEPTUAL QUESTIONS)
  1. Lack of independent assortment of two genes A and B in fruit fly Droso...

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  2. A normal woman whose father was colour blind marries a normal man .the...

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  3. If father is normal while mother is carrier of haemophilia

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  4. Which of the following show linkage group in coupling phase :-

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  5. The longer the chromosome of an organism, the more genetic variability...

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  6. Which statement is incorrect about linkage-

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  7. A woman with normal vision, but whose father was colour blind, marrie...

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  8. Haemophilia is more commonly seen in human males than in human females...

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  9. Had Mendel decided to study those traits together which are determined...

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  10. Mendel formulated the laws of heredity considering seven pairs of cons...

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  11. If Mendel had studied the seven traits using a plant with 12 chromosom...

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  12. Linkage in plants was first shown in

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  13. With increasing age the linkage becomes :-

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  14. Coupling and repulsion theory of linkage was given by

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  15. If there were only parental combinations in F(2) of a dihybrid cross t...

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  16. Linkage was discovered by

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  17. A dihybrid plant with incomplete linkage on test corss may produce how...

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  18. How many linkage group are there in bacteria E. coli :-

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  19. If distance between gene on chromosome is more, then gene shows :-

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  20. Linked gene shows :-

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