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August 20, 2014

Homework Help: Biology

Posted by Bella on Monday, January 17, 2011 at 9:27pm.

Your research team suspects that lactose intolerance is a recessive trait. Which of the following observations would contradict your theory?

a) Two lactose intolerant parents always have children who are lactose intolerant

b) Genetic analysis shows that individuals must possess two copies of the "lactose intolerance gene" to show the lactose intolerant phenotype

c) Two parents, both lactose intolerant, have a child who is not lactose intolerant

d) Two parents, one able to tolerate lactose and the other intolerant, have a child who is able to tolerate lactose

e) Two parents, one able to tolerate lactose and the other intolerant, have a child who is not able to tolerate lactose

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