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A person with sex chromosomes XXY suffer...

A person with sex chromosomes XXY suffers from :

A

Down's Syndrome

B

Turner's Syndrome

C

Sturge - weber Syndrome

D

Klinefeltr's Syndrome

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A gamete with any sex chromosome is called heterogametic.

Due to nondisjunction of chromosomes during spermatogensis, some sperms carry both sex chromosomes (22A + XY) and some sperms do not carry any sex chromosome (22A + O). If these sperms fertilise normal eggs (22A + X), what types of genetic disorders respectively appear among the offspring ?

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USHA PUBLICATION-GENETICS-EXERCISE
  1. In a person with Turner syndrome, the number of X-chromosome is

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  2. In human genes, multiple genes are involved in the inheritance of ----

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  3. A person with sex chromosomes XXY suffers from :

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  4. Freemartin is an example of :

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  5. Which of the following types of sex determination is found in grasshop...

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  6. Inheritance of ABO blood group system is an example of ----

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  7. Which term did Mendel use to denote something in germ cells responsibl...

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  8. Barr bodies are found in......of a woman

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  9. Law of independent assortment of Mendel can be proved on the basis of ...

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  10. Which of the following genotype of man shows presence of one Barr Body...

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  11. Down.s syndrome is due to ....... of chromosome 21.

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  12. Which one is linked to hypertrichosis ?

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  13. Who worked profoundly on Drosophila genetics ?

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  14. Which genetic disease is regarded as Royel disease ?

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  15. In birds type of sex determination occurs.

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  16. Who proposed genic balance theory for determination of sex in Drosophi...

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  17. In human, the composition of female destined zygote is -----

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  18. Human thalassemia is an autosomal recessive hereditary disease caused ...

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  19. The Pedigree study of haemophilia was first made by ----- in the royal...

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  20. Turner's syndrome is represented by -----

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