Answer:
This response is activated only by physical threats
Lymphocytes are amassed in the lymph hubs. The spleen and the thymus are additionally lymphoid organs of the resistant framework. The tonsils are lymphoid organs that are additionally connected with the stomach related framework. Lymphoid tissues contain lymphocytes, and furthermore, contain different sorts of cells for support. The confusion is legitimately coordinated with the lymphatic organ dependable is Spleen; failure to expel pathogens from lymph
Answer:
This indicates that the expression of genes depends partly on environment.
Explanation:
The case shown in the question is showing a situation where there was a genetic interaction with the environment, resulting that gene expression depends in part on the environment.
Gene and environmental interactions are revealed by penetrance and expressiveness. Penetrance is the percentage of individuals with a given gene that have a phenotype linked to this gene, such as children and parents who have the same height. In cases of penetrance, a genotype may not express the expected phenotype due to gene influences and environmental effects, as happened to the couples' children shown in the question.
