If one person in 50 is a carrier of an autosomal recessive disorder in a population, the chance that an unrelated man and woman are both carriers is 1/2500.
What is the genetic likelihood?
The expression 'genetic likelihood' refers to the estimation to have a given phenotype (in this case, a recessive disorder).
The genetic likelihood that an unrelated man and woman are both carriers for a disorder that has an incidence of 1/50 in the population is equal to 1/50 x 1/50 = 1/2500.
In conclusion, the chance that an unrelated man and woman are heterozygous (carriers) for a autosomal recessive disorder that exhibits an incidence of 1/50 in the population is 1/2500.
Learn more about likelihood and recessive disorders here:
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