Marker gene

A marker gene is like a sticker that helps scientists find a specific thing in a cell or organism. Think of it like putting a sticker on your backpack to make it easier to spot in a sea of backpacks. Scientists use marker genes to identify certain cells or organisms that they want to study. The marker gene acts as a sign that says "look here!", so the scientists can find the important thing they are looking for more easily. It's like using a map or a treasure hunt clue to help you find the treasure!