1. genetic

Today we are going to learn “genetic”. It means relating to genes or genetics.
(1) A new genetic study has identified 13 new genetic errors that correlate with a high risk of brain tumors.
(2) The entire human genetic blueprint is in the process of collection, in the Human Genome Project.

2. encounter

Another word is “encounter”. It means to experience something, especially problems or opposition.
(1) The doctor had encountered several similar cases in the past.
(2) The government has encountered strong opposition to its plans to raise income tax.