cont prev lec?

you can see both alleles have the enzyme

but mutation in t will replace gc? to introduce mutation, it will abolish the site, and the enzyme is unable to cut it

the first will have 3 fragment, small one being the bottom, then w, then X

but in case 2

only 2 bands, due to mutation

that of course, after cutting, you’ll see this pattern

1. 3 bands
2. 2 bands

depending on whether mutation is there or not

sometimes it’ll tell the opposite, sometimes not?

depending on what they sasy