Lesson 9.1 · Unit 9, Block 1
31 questions on this block. Tap an answer and it moves on by itself — correct answers advance immediately, misses hold a few seconds so you can read why.
Click the buttons and watch what changes.
A chromosome contains DNA, a gene is a section of that DNA, and the order of the nucleotides is the instruction.
Part 1DNA is a chain of nucleotidesPart 2The order is the informationPart 3A gene is a section of DNAPart 4Chromosomes hold the genesPart 5How the pieces fit togetherPart 6From parent to offspring