Listeria bacteria can contaminate fresh produce, like cantaloupes, as well as some processed foods, like cheeses. Symptoms of infection include fever, muscle aches, upset stomach, or diarrhea -- occurring 2 days to 2 months after exposure. Safety: Scrub raw produce and dry before cutting.
Here the relation between genotype and phenotype is illustrated, using a Punnett square, for the character of petal colour in a pea plant. The letters B and b represent genes for colour and the pictures show the resultant flowers.n the case of an albino with a recessive allele (aa), the phenotype depends upon the other allele (Aa, aa or AA). An affected person mating with a heterozygous individual (Aa or aA, also carrier) there is a 50-50 chance the offspring will be albino's phenotype.
Homozygous vs Heterozygous. If we assign a letter such as B to a dominant genetic or hereditary trait then b will be a defective allele: So, If homozygous genotypes are represented by BB (normal) and bb (affected) and heterozygous genotypes are represented by Bb (carrier genotype) Below are examples and probabilities of children born to parents with different genptypes: Parents BB x BB Two healthy parents. Children 100% BB All children will be normal.