Forensic samples are contaminated in most of the cases.The DNA extracted from such exhibits is also degraded in a number of cases. Some forensic experts stated in the courts that DNA of single sperm is insufficient for profiling.What is the most appropriate answer of the question?
Since a single sperm contains only one allele at each locus for the normal loci analysed by most kits, it is impossible for a single sperm to provide a 'full' profile - whether degraded or not.
I seem to recall that the minimum number of sperm to produce a genotype of the donor with some confidence that all alleles have been typed is 9. The answer will depend on just how confident you want to be. The chance of 'seeing'a particular allele at each locus (assuming your typing system is capable of it and there is no degradation) is 1/2 so the chance of missing it is the same. I'll let you take it from there :)
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