question archive Two loci are involved with blood type determination, the ABO locus and the Rhesus locus

Two loci are involved with blood type determination, the ABO locus and the Rhesus locus

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Two loci are involved with blood type determination, the ABO locus and the Rhesus locus. The allele frequencies are indicated below. Blood alleles IA and IB are co-dominant and both are dominant to IO. Rh+ is fully dominant to Rh-

A = 0.15       Rh+ = 0.65

B = 0.12         Rh- = 0.35

O = 0.73

What is the probability you will find a person who is type A, Rh positive in this population?

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In this case

P (Type A, Rh+ person)

P (Type A) *P(Rh+)

Step-by-step explanation

Given the following variables, what is the probability you will find a person who is type A, Rh positive in this population?

A = 0.15       Rh+ = 0.65

B = 0.12         Rh- = 0.35

O = 0.73

Answer: 

In this case

P (Type A, Rh+ person)

P (Type A) *P(Rh+)

= 0.15*0.65

= 0.0975

Hence, the probability you will find a person who is type A, Rh positive in this population is 0.0975.