Mr. Rodriguez's mother has the blood type O and his father has type A blood. Mr. Rodriguez can have either O type blood with OO genotype or A blood type with AO genotype.
Blood types are governed by three genes namely O gene, A gene and B gene.
Mr. Rodriguez's mother has blood type O and therefore genotype must be OO. Mr. Rodriguez's father has the blood type A and hence his genotype can be either AA or AO.
If the genotype of Mr. Rodriguez's father is AO, then:
OO x AO will result in 2 AO genotypes and 2 OO genotypes.
If the genotype of Mr. Rodriguez's father is AA, then:
OO x AA will result in AO as all four genotypes.
Hence, Mr. Rodriguez can have either OO or AO genotype.
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