Question

Which of the following is likely to be more common among Americans with ancestors from northern Europe because carriers may have possessed protection against cholera?

Answer 1

The association suggested by these questions leads to Cystic Fibrosis, because it is common in the northern European population or with ancestors from that region and because it is preserved in the human genome because it provides a defense to cholera and also tuberculosis.

Step-by-step explanation:

First of all, we need to understand something here. We were looking for a physiological factor related to cholera protection that is present in northern European descendants. Many factors could fall into this category if we only think in the northern European factor, but when you combine it with cholera. Cystic Fibrosis comes immediately because it has been found that it has been preserved in the human genome to help the individual resist cholera.