“A haplotype (haploid genotype) is a particular pattern of variation along a chromosome. Imagine three successive variable sites – the first can be G or C (representing guanine or cytosine), the second can be A (adenine) or G, while the third can be T (thymine) or C. A particular individual might have C in the first site A in the second site, and T in the third site – his haplotype would be CAT, while another person (presumably Catalan) has the haplotype CGT. A haplotype is like a hand of poker: the bases in the variable sites are like individual cards. ”
Some of my jokes are obscure.