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Sickel-cell anemia is...

Sickel-cell anemia is

A

Caused by substitution of valine by glutamic acid in the beta globin chain of haemoglobin

B

Caused by a change in a single base pair of DNA

C

Characterized by elongated sickle like RBCs with a nucleus

D

An autosomal linked dominant trait

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The correct Answer is:
B
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AAKASH SERIES-MOLECULAR BASIS OF INHERITANCE-Exercise-III (Previous AIPMT/NEET Questions)
  1. If one strand of DNA has the nitrogenous base sequence as ATCTG, what ...

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  2. Removal of RNA polymerase III from nucleo-plasm will affect the synthe...

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  3. Which one of the following is not a part of a transcription unit in DN...

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  4. Removal of introns and joining of exons in a defined order during tran...

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  5. Satellite .DNA. is useful tool in

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  6. Which one of the following palindromic base sequences in DNA can be ea...

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  7. Which one of the following has its own DNA?

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  8. Satellite .DNA. is useful tool in

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  9. What is not true for genetic code?

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  10. Whose experiments cracked the DNA and discovered unequivocally that a ...

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  11. There is no DNA in

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  12. Sickel-cell anemia is

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  13. The genetic defect adenosine deaminase (ADA) deficiency may be cured p...

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  14. What is not true for genetic code?

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  15. In the DNA molecule

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  16. Which one of the following of codons is correctly matched with their f...

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  17. Differentiation of organs and tissues in a developing organism is asso...

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  18. During transcription, RNA polymerase holo-enzyme binds to a gene promo...

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  19. The length of DNA molecule greatly exceeds the dimensions of the nucle...

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  20. The Okazaki fragments in DNA chain growth

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