DNA Test quiz online for students. This page features DNA quiz questions and answers in the form of trivia tests which students have to answer. Students will learn about related concepts, hereditary, the genetic code (triploid code), DNA structure, genetics as a whole and more. There is a reading exercise on the link which students can use to study and understand what the whole idea of DNA and hereditary is all about. This topic is interesting given that students get to learn why some people of the same family (relatives) have certain phenotypical aspects (resemblances) in common. Students will also understand that genes are transmitted from one generation to another.| Multiple choice quiz featuring biology test questions for students to review biology topics. Click on each question and select the correct answer below and submit. Feedback is instant and at the end you will get your score. Biology quiz for 2nd, 3rd, 4th, 5th, 6th, 7th grades to review. Focus: Online science Trivia | science quiz questions | Biology Test | Biology questions.