Final answer:
True. In the absence of allelic exclusion, B cells would produce low-avidity immunoglobulins, which would not be effective in recognizing and neutralizing pathogens.
Step-by-step explanation:
In the absence of allelic exclusion, B cells would produce low-avidity immunoglobulins. Allelic exclusion is a process that ensures that each B cell produces only one type of antibody by silencing the other allele. This results in the production of high-avidity immunoglobulins with specific antigen-binding sites. However, in the absence of allelic exclusion, B cells would not be able to generate a strong immune response because they would produce antibodies with low affinity for antigens. This would make it difficult for these antibodies to effectively recognize and bind to pathogens, reducing their ability to neutralize threats and provide protection.