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Which one of the following conditions co...

Which one of the following conditions correctly describes the manner of determining the sex in the given example?

A

Homozygous sex chromosomes (ZZ) determine female sex in birds

B

XO type of sex chromosomes determine male sex in grasshopper

C

XO condition in human as found in Tuner syndrome ,determines female sex

D

Homozygous sex chromosomes (XX) produce male in Drosphila

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The correct Answer is:
b
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MODERN PUBLICATION-PRINCIPLES OF INHERITANCE AND VARIATION-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS (A. MULTIPLE CHOICE QUESTIONS (MCQs):)
  1. Which one of the following conditions of the zygotic cell would lead t...

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  2. Test cross in plants or in Drosophila involves crossing:

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  3. Which one of the following conditions correctly describes the manner o...

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  4. Mutations can be induced with

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  5. A person with unknown blood group under ABO system, has suffered much ...

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  6. Experimental verification of chromosomal theroy of inheritance was gti...

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  7. The chromosome condition in Turner syndrome is :

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  8. In Mendelian dihybrid cross when heterozygous Round Yellow are self cr...

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  9. The loss of a chromosmal segment is due to :

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  10. XO type of sex determination is seen in

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  11. Allelism refers to

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  12. Mendelian principles are not applicable in case of

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  13. Genotypic and phenotypic ratio in monohybrid cross remains the same in...

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  14. Mendel was successful in discovering the principles of inheritance as

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  15. Crossing over is the exchange of genetic material between:

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  16. A hereditary disease which is never passed on from father to son is

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  17. If a colour blind man marries a girl who is normal (homozygous) for th...

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  18. Frequency of crossing over will be relatively more if :

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  19. The existence within a population of non-beneficial alleles in heteroz...

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  20. Presence of recombinants is due to :

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