Single-sperm typing. 
This unit presents protocols for sperm isolation using two different methods, amplification of simple sequence-length polymorphisms (SSLP) and/or single nucleotide polymorphisms (SNP) from single cells or whole genome-amplified single cells using primer extension preamplification (PEP), and discusses the statistical analysis of sperm-typing recombination data.  Newer methods for studying recombination over very short distances (a few kilobases) using total sperm DNA and allele-specific PCR are also discussed.