The most obvious fault of this paragraph is the lack of punctuation marks. The entire paragraph is one sentence, when there are supposed to be periods, commas, and other punctuation marks to separate them. This makes this paragraph one run-on sentence, which is grammatically incorrect.
Answer:
Genetics affect almost everything about you.
Explanation:
Hi there,
Genetics influences what sort of traits you will inherit from your parents, regardless of good or bad traits. For example, your appearance can be similar to other family members since your genetics is derived from your parents and older relatives. Genetics also influence other things about you such as the diseases you may have or your life expectancy. While genetics influences the physical aspects about you, it does not have direct influence over who you are as a person.
Hope this answer gives you a good idea about genetics. Feel free to follow up with some questions.
Cheers.