Genes for "self" antigens are passed on from one generation to the next in a clump called a haplotype. A haplotype is a combination of genes--HLA alleles, for example--that are located closely together on the same chromosome and tend to be inherited together as a package deal. Alleles are genes that come in many varieties, all of which function reasonably well at making the related protein.
![Haplotypes: Passing on Genes for 'Self' Antigens](https://webarchive.library.unt.edu/eot2008/20090510230132im_/http://www.cancer.gov/images/Documents/84790913-8189-4760-83de-6fbad2a812ed/slide11.jpg)
< Previous | Index | Next Slide > |