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Ratio 9 : 3 : 3 : 1 is due to:...

Ratio `9 : 3 : 3 : 1` is due to:

A

Duplicate genes

B

Lethal genes

C

Monohybrid cross

D

Dihybrid cross

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The correct Answer is:
D
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DINESH PUBLICATION-GENETIC BASIS OF INHERITANCE-Revision Questions From Competitive Exams
  1. The process of removing stamen from flora buds during hybridisation ex...

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  2. Hybrid are generally superior to parents due to

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  3. Ratio 9 : 3 : 3 : 1 is due to:

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  4. The ratio of 9 : 7 is due to:

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  5. Monohybrid cross involves

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  6. A woman with albinic father marries an albinic man. The proportion of ...

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  7. In a dihybrid cross AABB xx aabb, "F"(2) progeny of AABB, AABb, AaBB a...

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  8. The term eugenics was coined by :

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  9. Mendel chose contrasting traits in Pea

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  10. How many contrasting traits of Pea pod were chosen by Mendel?

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  11. Monohybrid ratio is

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  12. Yellow colour is dominant over green colour. In a generation of 50% ye...

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  13. A cross between F(1) hybrid and a recessive parent (Tt xxtt) gives a r...

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  14. Different forms of a gene are called

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  15. O group mothe with O group child sues AB group man for fathership of c...

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  16. Mendel crossed a pure white -flowered recessive pea plant with a domi...

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  17. Genetically identical progeny is produced when the individual

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  18. Genes controlling seven traits in Pea studied by Mendel were actually ...

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  19. Cross AABb xx aaBb yields AaBB:AaBb:Aabb:aabb offspring in the ratio o...

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  20. The process of mating between closely related individuals is

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