From what I remember from my bio class, the answer should be True. Hope this helps :)
Answer:
Codominant
Explanation:
Often, when an individual has two different alleles that determine its certain trait, the effect of the dominant allele will be expressed, while the effect of the recessive allele will be hidden. For example, this is how we inherit eye color.
However, it isn't always like this. Sometimes, the effects of both (different) alleles are expressed. This phenomenon is called codominance, and the scenario you were given is an example of it.
Answer:
Letter d. Evola virus could not produce an exotoxin
Explanation:
Viruses are acellular particles carrying genetic material only for their reproduction. None of the viruses produces toxins, viruses atack by altering the normal function of the host cell. In the other hand, bacteria involve in alimentary infections like <em>E. coli, S. aureus</em> and <em>C. botulinum</em> produce exotoxins to attack the host cells to colonize and start an infection. The exotoxin is too potent that alter the function of the intestinal cells before the immune system recognize the bacteria.