Because each possibility is equally likely, genotypic ratios can be determined from a Punnett square. If the pattern of inheritance (dominant or recessive) is known, the phenotypic ratios can be inferred as well. For a monohybrid cross of two true-breeding parents, each parent contributes one type of allele. In this case, only one genotype is possible.
Occult (hidden) bacteremia is the presence of bacteria in the bloodstream of a child who has a fever but who looks well and has no obvious source of infection. Most commonly, occult bacteremia is caused by Streptococcus pneumoniae bacteria. Typically, children have no symptoms other than fever.
The word occult is derived from the Latin word occultus which means  hidden . Occult blood is a medical term which refers to blood which cannot be seen, except perhaps under a microscope. The Occult has been defined as any activity which. 1  is esoteric (employs knowledge that is not known to the general public, but which is only revealed gradually to a selected few in training), and. 2  depends upon those talents which lie beyond the five senses, and. 3  engages with the supernatural.