Mice that are homozygous for obese (ob/ob) or diabetic (db/db) gene products eat much more food and move much less than normal mice. To determine the function of these gene products, researchers used a technique called parabiosis, in which two closely related animals are surgically united to allow the passage of long-lived molecules. What conclusions were drawn from this experiment?

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The diabetic gene codes for a hormone that reduces appetite.

  

The gene products obese and diabetic are involved in hormonal signaling that affects appetite and activity level.

  

The gene products obese and diabetic are involved in electrical signaling that affects appetite and activity level.

  

The obese gene codes for the receptor to the hormone that reduces appetite.

 

asked Jan 1, 2013 in Biology by anonymous
    

1 Answer

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The gene products obese and diabetic are involved in hormonal signaling that affects appetite and activity level.

 

answered Jan 1, 2013 by anonymous

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