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A woman with two genes one for haemophil...

A woman with two genes one for haemophilia and one for colour blindness on one of its X-chromosomes marries a normal man .The progeny will be

A

`50%` haemophilic colour-blind sons and `50%` haemophilic sons

B

`50%` haemophilic daughters and `50%` colour blind daughters

C

All sons and daughters haemophilic and colour-blind

D

Haemophilia and colour-blind daughters

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The correct Answer is:
A
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A women has a gene for haemophilia on one of her X-chromosomes. If she marries a normal man, their children will be (A) 50% haemophilic daughters and 50% normal daughters (B 50% haemophilic sons and all daughters are non haemophylic (C) All daughters are haemophilic (D) All sons are hemophilic

AAKASH INSTITUTE-PRINCIPLES OF INHERITANCE AND VARIATION-Assignment (SECTION-C) Previous Years Questions
  1. Loss of an X-chromosome in a particular cell, during its development, ...

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  2. If Mandel had studied 7 traits using a plant with 12 chromosomes inste...

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  3. A woman with two genes one for haemophilia and one for colour blindnes...

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  4. In human beings, multiple genes are involved in the inheritance of:

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  5. Haemophilic man marries a normal woman. Their offspring will be

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  6. A marriage between normal visioned man and colour blind woman will pr...

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  7. In hybridization "Tt" xx "tt" gives rise to the progeny in the ratio ?

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  8. According to mendeslim which character is showing dominance:

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  9. Due to the cross between "TTRr" xx "ttrr" the resultant progenies show...

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  10. In Drosphila he XXY condition leads to femaleeness whereas in human be...

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  11. Independent assortment of genes does not take place when:

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  12. Mendel obtained wrinkled seeds in pea due to deposition of sugars inst...

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  13. Ratio of complementary genes is

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  14. When both alleles express their effect on being present together, the ...

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  15. A and B genes are linked .what shall be genotype of progeny in a cross...

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  16. Probability of four sons to a couple is :

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  17. If recombination frequency between AB genes a 20% and BC gene is 40% a...

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  18. Male XX and female XY sometime occur due to :

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  19. Number of Barr bodies in XXXX female would be

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  20. Inheritance would be extranuclear in case of

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