Question

1. mrs. clink is blood type a and mr. clink is blood type o. they have three children named matthew, mark, and luke. mark is blood type o, matthew is blood type a, and luke is blood type ab. luke is not their biological child. based on this information:

a. mr. clink must have the genotype ____
b. mrs. clink must have the genotype ____
c. luke cannot be the child of these parents because neither parent has the allele ____

Explanation:

Step1: Determine Mr. Clink's genotype

Blood type O has genotype \(ii\). Since Mr. Clink is blood type O, his genotype must be \(ii\).

Step2: Determine Mrs. Clink's genotype

Mrs. Clink is blood type A. Her possible genotypes are \(I^AI^A\) or \(I^Ai\). But since they have a child (Mark) with blood type O (\(ii\)), Mrs. Clink must have the \(i\) allele. So her genotype is \(I^Ai\).

Step3: Analyze Luke's blood type

Blood type AB has genotype \(I^AI^B\). Mr. Clink has genotype \(ii\) (no \(I^B\) allele) and Mrs. Clink has genotype \(I^Ai\) (no \(I^B\) allele). So neither parent has the \(I^B\) allele.

Answer:

a. \(ii\)
b. \(I^Ai\)
c. \(I^B\)