Using a Punnett Square. A Punnett Square can help determine the probability that offspring will have a particular phenotype or genotype. Example: The possible offspring outcomes for parents who are both carriers of a cystic fibrosis mutation.
Pyrokinesis is an alleged psychic ability allowing a person to create and control fire with the mind. There is no conclusive evidence that pyrokinesis is a real phenomenon. Alleged cases are said to be hoaxes, the result of trickery.
Pyelonephritis is an inflammation of the kidney tissue, calyces, and renal pelvis. It is commonly caused by bacterial infection that has spread up the urinary tract or travelled through the bloodstream to the kidneys. A similar term is pyelitis which means inflammation of the pelvis and calyces.