15 Points A roller coaster starts from rest at A, rolls down the track to B, travels along a vertical loop of 12 meter diameter, and travels down past point E.  Knowing that h = 20 m. (***Use the listed value for the diameter and not 20 feet for the radius***) Assuming no Energy is lost to friction, determine the force exerted by the seat on a 50 kg rider at B, D, and E. What is the minimum value of the radius of curvature at E if the roller coaster is not to leave the track at that point?

A lichen is a composite organism made up of:

Plant adaptations to land: Match the words on the left with the correct function on the right.    

Gametophytes give rise to ______________.

Overproduction of which protein is most consistent with a diagnosis of Waldenstrom’s?

A bone marrow specimen is received in the cytogenetics lab.  FISH analysis has been ordered.  The MLS performs the assay and notices that 96% of the patient’s cells contain both 5q– and 7q– deletions.  These cytogenetic findings are characteristic of:

Which of the following myeloproliferative neoplasms is least likely to involve the JAK2 V617F mutation?

Which of the following helps differentiate essential thrombocythemia (ET) from primary myelofibrosis (PMF)?

60-year-old patient visited his general practitioner because of fatigue and unexplained bruising.  Physical examination revealed a frail, thin, pale man with widespread bruising.  A CBC was ordered and revealed abnormal granularity of platelets and leukocytes.  Red cells appeared dimorphic.  Bone marrow analysis showed 20% ringed sideroblasts with dysplastic changes in RBC and WBC precursors.  No cytogenetic abnormalities were detected.  Based on this information, what is a probable diagnosis?

Properly diagnosing a patient requires distinguishing the correct disorder from other disorders with a similar lab presentation. Which disorder below will present with leukocytosis?