Ragweed antigens bind ragweed and then bind mast cells which release histamine
<span>Allergies develop because of a Th2 response against the allergen. </span>
A person that is being introduced into a new culture can feel a variety of different sensations. For example, one may feel frustrated because she or he cannot communicate or become angry because certain cultural norms do not make sense. ... Cultural adaptation theory offers an explanation for these emotions.
Answer:
The parent with black fur had genotype Bb.
Explanation:
White fur is recessive in mice, so a mouse with white fur has to have two alleles of the white fur gene (bb). Black fur is dominant to white fur, so a mouse with black fur only needs one allele of the black fur gene (BB or Bb). In order for a black mouse and a white mouse to produce white offspring, the black parent has to have an allele for the white fur gene (Bb).
