A haplotype is, in the simplest terms, a specific group of genes or alleles that progeny inherited from one parent. There are, however, several specific definitions of the term being used in the field of genetics. First, it is a portmanteau word for haploid genotype, which is a collection of specific alleles (that is, specific DNA sequences) in a cluster of tightly-linked genes on a chromosome that are likely to be inherited together—that is, they are likely to be conserved as a sequence that survives the descent of many generations of reproduction.