6. All offspring of a parents are not similar due to

1. 1. Variation

   
   
   

   2. Variation in environment

   
   
   

   3. Both a and b

   
   
   

   4. None of these

   
   
   

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   NA

   Correct Option: C

   NA

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7. An exception to Mendel's principles / Mendel did not include in his discoveries.

1. 1. Dominance

   
   
   

   2. Purity of gametes

   
   
   

   3. Linkage

   
   
   

   4. Independent assortment

   
   
   

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   NA

   Correct Option: C

   NA

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8. Sex chromosome in human male are named

1. 1. XX

   
   
   

   2. XO

   
   
   

   3. XY

   
   
   

   4. None of these

   
   
   

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   NA

   Correct Option: C

   NA

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9. Who proved that DNA is the basic genetic material ?

1. 1. Griffith

   
   
   

   2. Watson

   
   
   

   3. Boveri and sutton

   
   
   

   4. Hershey and Chase

   
   
   

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   NA

   Correct Option: D

   NA

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10. Which one of the following genetic disease is sex-linked ?

1. 1. Royal haemophilia

   
   
   

   2. Tay-saches disease

   
   
   

   3. Cystic fibrosis

   
   
   

   4. Hypertension

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

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