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Sickle cell anamia has not been eleimina...

Sickle cell anamia has not been eleiminated from African polulation as

A

Is controlled by recessive genes

B

Is not a fatal disease

C

Provides immunity against malaria

D

Is controlled by dominant genes

Text Solution

Verified by Experts

The correct Answer is:
B
In african population, sickle-cell anaemia has not been eliminated because it provides immunity against malaria. People in these populations who are born heterozygous for sickle-cell anaemia have this advantage
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ARIHANT NEET-HUMAN GENETICS-Chapter Exercise (c) Medical entrances gallery (Collection of questions asked in NEET & Various Medical Entrance Exams)
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  2. A marriage between normal visioned man and colour blind woman will pr...

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  3. Sickle cell anamia has not been eleiminated from African polulation as

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  5. Gene for colour blindness is located on:

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  6. Identify a Mendelian disorder from the following

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  7. A man a inherit his X chromosome from

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  8. Excessive growth fo hair one the pinna is a feature found only in male...

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  9. Assertion : Phenylketonuria is a recessive hereditary disease caused b...

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  10. Which of the following is not a hereditary disease

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  11. Which of the following disease results from the genetic inability to ...

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  12. Down's syndrome and Turner's syndrome occur in human being due to

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  13. A diseased man marries a normal woman and they get three daughters and...

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  14. Haemophilia, an X-linked recessive disease is caused due to deficiency...

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  15. A person is suffering from disease phenylketonuria, Which is an autoso...

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  16. Which of the following is the example of sex-linked disease?

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  17. If a character is always transmitted directly from a father to all his...

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  18. X-chromosome of female in a sex - linked inheritance case can be passe...

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  19. Pattern baldness, moustanches and beard in human males are examples of...

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  20. A couple has 6 children, 5 are girl and 1 is boy. The percentage of h...

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