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XY sex chromosomes were discovered by :...

XY sex chromosomes were discovered by :

A

Nettie stevens

B

MJD white

C

Robert Brown

D

Mendel

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The correct Answer is:
A
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ARIHANT NEET-HUMAN GENETICS-Chapter Exercises A Taking it together (Assorted Questions of the Chapter for Advanced level Practice )
  1. In most animals,sex of the offspring is established during :

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  2. The male child is born when sperm with,

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  3. XY sex chromosomes were discovered by :

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  4. From the pedigree of a family given below, it is clear that trait is i...

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  5. Haploids are used for research because

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  6. The ezyme which changes amino acid phenylalanine to amino acid tyrosi...

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  7. If a genetic disease is transferred from a phenotypically normal but c...

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  8. Male XX and female XY develop sometimes due to

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  9. Turner's syndrome is due to

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  10. The enzyme tyrosinase is essential for the synthesis of pigment

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  11. Marriage between close relatives should be avoided because it induces...

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  12. Tay -sachs disease is an example of :

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  13. All the following traits are X-linked except:

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  14. A child of 10 yrs is a intelligent as is normally expected in the chil...

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  15. Intelligence qutient (IQ) is a ratio of mental age to :

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  16. In case of taster and non-taster human beings T is for dominance & t i...

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  17. Father has AB blood group,mother has B, which of the following will no...

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  18. A sex -linked recessive trait found on X-chromosome is

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  19. An abnormality due to dominant gene is

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  20. A disease sometimes found in persons above 40 which is charachterised ...

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