Please provide the possible reasons why higher organisms should use DNA instead of RNA molecules to store genetic information, or say life blueprint (10 points).  

Please describe the molecular components ( 10 points) and molecular processes (10 points) involved in human X chromosome imprinting or Arabidopsis plant vernalization (select one of the two to answer. Please provide as much details as you can. the total points of the question are 20).  

Diagnostic testing commonly used for myasthenia gravis is Tensilon (Edrophonium) test and for Guillan Barre it is CSF fluid test or excessive proteins.

Which of the following is the initial treatment to prevent atelectasis after chest or abdominal surgery?

A “personal best” on a peak flow meter should be re-established in children every __________________ to account for growth and accurate monitoring  of asthma.

Which of the following does not cause pneumonia?

The Western Blot assay blood test  is most commonly used to confirm a diagnosis of

A partial or complete collapse of lung regions is termed

Bronchiectasis is commonly associated with which of the following 

Candida albicans most often appears as a