Pattern baldness in humans is controlled by a single autosomal locus with two alleles(B and B’), but pattern baldness is a sex influenced phenotype:baldness is dominant in males (BB and BB’ males become bald), butrecessive in females (only BB females become bald). If a populationis in Hardy Weinberg equilibrium for […]

Assume you have been examining a new drug that binds to PPAR? and produces its beneficial effect (increased insulin sensitivity). When you give this chemical to mice, you see kidney damage. Other PPAR? drugs did not lead to the same toxic effect and in a PPAR? knockout mouse you still […]

1. As a Nursing student in Advanced Human Anatomy, you were able to observe a total hip replacement. While the O.R. personnel where prepping the patient for the surgical procedure, the anesthesiologist assumed (rightly so!) that you had some physiology background. As such, she launched into the following procedural explanation: […]

1) You begin your expedition at the mouth of the Brisbane River at sea level (barometric pressure = 760 mmHg). The temperature is 20oC and the relative humidity is 78%. What is the partial pressure of nitrogen in the air? 2) You then travel upstream, following the path of the […]