Mexican hairless dogs are heterozygous (hh), carrying a single copy of a recessive lethal allele (hh homozygotes are dead, and hh individuals have hair). in a given population, 80% of the individuals are hh and 20% are hh. what are the allele frequencies in this population? mexican hairless dogs are heterozygous (hh), carrying a single copy of a recessive lethal allele (hh homozygotes are dead, and hh individuals have hair). in a given population, 80% of the individuals are hh and 20% are hh. what are the allele frequencies in this population? 0.55 h and 0.45 h 0.60 h and 0.40 h 0.70 h and 0.30 h 0.90 h and 0.10 h 0.80 h and 0.20 h