Alzheimer Disease is the leading cause of dementia, a set of symptoms that includes loss of memory, judgment and reasoning, and changes in mood and behavior. It is most common in elders but is not caused by ageing. In studying the brains of Alzheimer and non-Alzheimer patients it has been found that those diagnosed with Alzheimers have less brain tissue compared to non-Alzheimer patients. The results show a correlation between a decrease of brain tissues with an increase in abnormal protein deposits in the brain. Therefore one hypothesis for the cause of Alzheimers is due to the abnormal protein deposits. Which of the following weakens the conclusion above?

• answer will be
  (b) The brains of Alzheimer patients have been found to produce an unusual substance which decomposes protein.
  since, patients have abnormal protien deposits.
• 12 years agoHelpfull: Yes(11) No(1)
• Seems to be Incomplete qn.
• 12 years agoHelpfull: Yes(8) No(2)
• Which of the following weakens the conclusion above?
  O Autopsies of Alzheimer patients have shown that deterioration of intellectual faculties is often associated with emotional disturbance and personality changes.
  O The brains of Alzheimer patients have been found to produce an unusual substance which decomposes protein.
  O People who are in their sixties are more likely to develop Alzheimers than any other age group.
  O Laboratory research shows that when people age, their brain tissues degenerate.
• 12 years agoHelpfull: Yes(2) No(0)