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.
Bacteremia is the presence of bacteria in the blood. Bacteremia suggests the presence of bacteria in the blood only; but, the condition of the patient is not described by it. It is important to understand that there are situations where there are bacteria in the blood without any outward sign of disease.