比如說某個基因造成某種疾病是科學，而有家族史的疾病可能使其後代有患病的可能就不是科學，隻是一個統計結果。
這個是不正確的定義，被驗證過的“基因造成某種疾病“是事實，是真理，你這個是把真理和科學等同了，這個是不對的。真理隻不過是科學的一部分，一些錯誤的認識也可以是科學。
科學的定義有5條，（基於https://www.merriam-webster.com/dictionary/science）
1 : the state of knowing : knowledge as distinguished from ignorance or misunderstanding
2a : a department of systematized knowledge as an object of study
// the science of theology
b : something (such as a sport or technique) that may be studied or learned like systematized knowledge
// have it down to a science
3a : knowledge or a system of knowledge covering general truths or the operation of general laws especially as obtained and tested through scientific method
b : such knowledge or such a system of knowledge concerned with the physical world and its phenomena : NATURAL SCIENCE
4 : a system or method reconciling practical ends with scientific laws
// cooking is both a science and an art
家族史的疾病可能使其後代有患病的可能就不是科學，隻是一個統計結果。
根據上麵2（b）的定義，是科學
