Lesson 9.4 · Unit 9, Block 4
46 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.
In gel electrophoresis, smaller fragments travel farther. Matching band patterns suggest the DNA came from the same source.
Part 1What each technology isPart 2How cloning and transgenic organisms helpPart 3How the Human Genome Project and stem cells helpPart 4Gel electrophoresis: reading a gelPart 5Benefit or risk? Transgenic organismsPart 6Ethical concernsPart 7Building a scientific argument