Recessive mutations at three linked loci are studied in fruit flies. For the first locus, forked bristles are produced by the recessive allele f. At the second locus, outstretched wings are produced by the recessive allele o. At the third locus, garnet eyes result from the recessive allele g. Wild […]

An elderly man, Tom, complained to his doctor about intense pain in the joint area of his big toe. The pain would last several days, subside, and then recur weeks later. Tom’s blood work revealed a very high uric acid concentration (well above the 7.4 mg / dl upper limit). […]

A patient having renal surgery suddenly develops massive hypertension and dies during surgery. An autopsy shows the presence of a pheochromocytoma. In your own words, explain how this incident might have happened. Your favorite cousin, who is 20 years old, has just been diagnosed with type 2 diabetes. He is […]

Cerebral vascular accident Mrs. Amelia Middleton is a 68 year old retired receptionist who is bought in by ambulance to theemergency department (ED) of her local hospital. Her son Paul is with her. Paul had called theambulance service earlier stating that his mother woke this morning complaining of a headache […]